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ResultSet.java：源码内容

/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.mysql.jdbc;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.StringReader;
import java.math.BigDecimal;
import java.net.MalformedURLException;
import java.net.URL;
import java.sql.Array;
import java.sql.Date;
import java.sql.Ref;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Time;
import java.sql.Timestamp;
import java.sql.Types;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;
/**
* A ResultSet provides access to a table of data generated by executing a
* Statement. The table rows are retrieved in sequence. Within a row its
* column values can be accessed in any order.
*
*
* A ResultSet maintains a cursor pointing to its current row of data.
* Initially the cursor is positioned before the first row. The 'next' method
* moves the cursor to the next row.
*
*
*
* The getXXX methods retrieve column values for the current row. You can
* retrieve values either using the index number of the column, or by using
* the name of the column. In general using the column index will be more
* efficient. Columns are numbered from 1.
*
*
*
* For maximum portability, ResultSet columns within each row should be read in
* left-to-right order and each column should be read only once.
*
*
*
* For the getXXX methods, the JDBC driver attempts to convert the underlying
* data to the specified Java type and returns a suitable Java value. See the
* JDBC specification for allowable mappings from SQL types to Java types with
* the ResultSet getXXX methods.
*
*
*
* Column names used as input to getXXX methods are case insenstive. When
* performing a getXXX using a column name, if several columns have the same
* name, then the value of the first matching column will be returned. The
* column name option is designed to be used when column names are used in the
* SQL Query. For columns that are NOT explicitly named in the query, it is
* best to use column numbers. If column names were used there is no way for
* the programmer to guarentee that they actually refer to the intended
* columns.
*
*
*
* A ResultSet is automatically closed by the Statement that generated it when
* that Statement is closed, re-executed, or is used to retrieve the next
* result from a sequence of multiple results.
*
*
*
* The number, types and properties of a ResultSet's columns are provided by
* the ResultSetMetaData object returned by the getMetaData method.
*
*
* @author Mark Matthews
* @version $Id: ResultSet.java,v 1.18.2.25 2004/02/06 00:55:37 mmatthew Exp $
*
* @see ResultSetMetaData
* @see java.sql.ResultSet
*/
public class ResultSet implements java.sql.ResultSet {
/**
* This method ends up being staticly synchronized, so just store our own
* copy....
*/
private TimeZone defaultTimeZone;
/** The Connection instance that created us */
protected com.mysql.jdbc.Connection connection; // The connection that created us
/** Map column names (and all of their permutations) to column indices */
protected Map columnNameToIndex = null;
/** Map of fully-specified column names to column indices */
protected Map fullColumnNameToIndex = null;
/** The actual rows */
protected RowData rowData; // The results
/** The warning chain */
protected java.sql.SQLWarning warningChain = null;
/** The statement that created us */
protected com.mysql.jdbc.Statement owningStatement;
/** The catalog that was in use when we were created */
protected String catalog = null;
/**
* Any info message from the server that was created while generating this
* result set (if 'info parsing' is enabled for the connection).
*/
protected String serverInfo = null;
/** The fields for this result set */
protected Field[] fields; // The fields
/** Pointer to current row data */
protected byte[][] thisRow; // Values for current row
/** Are we in the middle of doing updates to the current row? */
protected boolean doingUpdates = false;
/** Has this result set been closed? */
protected boolean isClosed = false;
/** Are we on the insert row? */
protected boolean onInsertRow = false;
/**
* Do we actually contain rows, or just information about
* UPDATE/INSERT/DELETE?
*/
protected boolean reallyResult = false;
/** Did the previous value retrieval find a NULL? */
protected boolean wasNullFlag = false;
/**
* First character of the query that created this result set...Used to
* determine whether or not to parse server info messages in certain
* circumstances.
*/
protected char firstCharOfQuery;
/** The current row #, -1 == before start of result set */
protected int currentRow = -1; // Cursor to current row;
/** The direction to fetch rows (always FETCH_FORWARD) */
protected int fetchDirection = FETCH_FORWARD;
/** The number of rows to fetch in one go... */
protected int fetchSize = 0;
/** Are we read-only or updatable? */
protected int resultSetConcurrency = 0;
/** Are we scroll-sensitive/insensitive? */
protected int resultSetType = 0;
/** How many rows were affected by UPDATE/INSERT/DELETE? */
protected long updateCount;
// These are longs for
// recent versions of the MySQL server.
//
// They get reduced to ints via the JDBC API,
// but can be retrieved through a MySQLStatement
// in their entirety.
//
/** Value generated for AUTO_INCREMENT columns */
protected long updateId = -1;
private Calendar fastDateCal = null;
private boolean hasBuiltIndexMapping = false;
private boolean useStrictFloatingPoint = false;
/**
* Create a result set for an executeUpdate statement.
*
* @param updateCount the number of rows affected by the update
* @param updateID the autoincrement value (if any)
*/
public ResultSet(long updateCount, long updateID) {
this.updateCount = updateCount;
this.updateId = updateID;
reallyResult = false;
fields = new Field[0];
}
/**
* Create a new ResultSet
*
* @param catalog the database in use when we were created
* @param fields an array of Field objects (basically, the ResultSet
* MetaData)
* @param tuples actual row data
* @param conn the Connection that created us.
*
* @throws SQLException if an error occurs
*/
public ResultSet(String catalog, Field[] fields, RowData tuples,
com.mysql.jdbc.Connection conn) throws SQLException {
this(fields, tuples);
setConnection(conn);
this.catalog = catalog;
}
/**
* Creates a new ResultSet object.
*
* @param fields DOCUMENT ME!
* @param tuples DOCUMENT ME!
*
* @throws SQLException DOCUMENT ME!
*/
public ResultSet(Field[] fields, RowData tuples) throws SQLException {
//_currentRow = -1;
this.fields = fields;
this.rowData = tuples;
this.updateCount = (long) rowData.size();
if (Driver.DEBUG) {
System.out.println("Retrieved " + updateCount + " rows");
}
this.reallyResult = true;
// Check for no results
if (this.rowData.size() > 0) {
//_thisRow = _rows.next();
if (this.updateCount == 1) {
if (this.thisRow == null) {
//_currentRow = -1;
this.rowData.close(); // empty result set
this.updateCount = -1;
}
}
} else {
this.thisRow = null;
}
this.rowData.setOwner(this);
}
/**
* JDBC 2.0
*
*
* Determine if the cursor is after the last row in the result set.
*
*
* @return true if after the last row, false otherwise. Returns false when
* the result set contains no rows.
*
* @exception SQLException if a database-access error occurs.
*/
public boolean isAfterLast() throws SQLException {
if (Driver.TRACE) {
Object[] args = { };
Debug.methodCall(this, "isAfterLast", args);
}
boolean b = rowData.isAfterLast();
if (Driver.TRACE) {
Debug.returnValue(this, "isAfterLast", new Boolean(b));
}
return b;
}
/**
* JDBC 2.0 Get an array column.
*
* @param i the first column is 1, the second is 2, ...
*
* @return an object representing an SQL array
*
* @throws SQLException if a database error occurs
* @throws NotImplemented DOCUMENT ME!
*/
public java.sql.Array getArray(int i) throws SQLException {
throw new NotImplemented();
}
/**
* JDBC 2.0 Get an array column.
*
* @param colName the column name
*
* @return an object representing an SQL array
*
* @throws SQLException if a database error occurs
* @throws NotImplemented DOCUMENT ME!
*/
public java.sql.Array getArray(String colName) throws SQLException {
throw new NotImplemented();
}
/**
* A column value can be retrieved as a stream of ASCII characters and then
* read in chunks from the stream. This method is particulary suitable
* for retrieving large LONGVARCHAR values. The JDBC driver will do any
* necessary conversion from the database format into ASCII.
*
*
* Note: All the data in the returned stream must be read prior to
* getting the value of any other column. The next call to a get method
* implicitly closes the stream. Also, a stream may return 0 for
* available() whether there is data available or not.
*
*
* @param columnIndex the first column is 1, the second is 2, ...
*
* @return a Java InputStream that delivers the database column value as a
* stream of one byte ASCII characters. If the value is SQL NULL
* then the result is null
*
* @exception java.sql.SQLException if a database access error occurs
*
* @see getBinaryStream
*/
public InputStream getAsciiStream(int columnIndex)
throws java.sql.SQLException {
checkRowPos();
return getBinaryStream(columnIndex);
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public InputStream getAsciiStream(String columnName)
throws java.sql.SQLException {
return getAsciiStream(findColumn(columnName));
}
//---------------------------------------------------------------------
// Traversal/Positioning
//---------------------------------------------------------------------
/**
* JDBC 2.0
*
*
* Determine if the cursor is before the first row in the result set.
*
*
* @return true if before the first row, false otherwise. Returns false
* when the result set contains no rows.
*
* @exception SQLException if a database-access error occurs.
*/
public boolean isBeforeFirst() throws SQLException {
if (Driver.TRACE) {
Object[] args = { };
Debug.methodCall(this, "isBeforeFirst", args);
}
boolean b = rowData.isBeforeFirst();
if (Driver.TRACE) {
Debug.returnValue(this, "isBeforeFirst", new Boolean(b));
}
return b;
}
/**
* Get the value of a column in the current row as a java.math.BigDecimal
* object
*
* @param columnIndex the first column is 1, the second is 2...
* @param scale the number of digits to the right of the decimal
*
* @return the column value; if the value is SQL NULL, null
*
* @exception java.sql.SQLException if a database access error occurs
*/
public BigDecimal getBigDecimal(int columnIndex, int scale)
throws java.sql.SQLException {
String stringVal = getString(columnIndex);
BigDecimal val;
if (stringVal != null) {
if (stringVal.length() == 0) {
val = new BigDecimal(0);
return val.setScale(scale);
}
try {
val = new BigDecimal(stringVal);
} catch (NumberFormatException ex) {
throw new java.sql.SQLException("Bad format for BigDecimal '"
+ stringVal + "' in column " + columnIndex + "("
+ fields[columnIndex - 1] + ").", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
try {
return val.setScale(scale);
} catch (ArithmeticException ex) {
throw new java.sql.SQLException("Bad format for BigDecimal '"
+ stringVal + "' in column " + columnIndex + "("
+ fields[columnIndex - 1] + ").", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
return null;
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
* @param scale DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public BigDecimal getBigDecimal(String columnName, int scale)
throws java.sql.SQLException {
return getBigDecimal(findColumn(columnName), scale);
}
/**
* JDBC 2.0 Get the value of a column in the current row as a
* java.math.BigDecimal object.
*
* @param columnIndex the first column is 1, the second is 2, ...
*
* @return the column value (full precision); if the value is SQL NULL, the
* result is null
*
* @exception SQLException if a database-access error occurs.
* @throws java.sql.SQLException DOCUMENT ME!
*/
public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
String stringVal = getString(columnIndex);
BigDecimal val;
if (stringVal != null) {
if (stringVal.length() == 0) {
val = new BigDecimal(0);
return val;
}
try {
val = new BigDecimal(stringVal);
return val;
} catch (NumberFormatException ex) {
throw new java.sql.SQLException("Bad format for BigDecimal '"
+ stringVal + "' in column " + columnIndex + "("
+ fields[columnIndex - 1] + ").", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
return null;
}
/**
* JDBC 2.0 Get the value of a column in the current row as a
* java.math.BigDecimal object.
*
* @param columnName the name of the column to retrieve the value from
*
* @return the BigDecimal value in the column
*
* @throws SQLException if an error occurs
*/
public BigDecimal getBigDecimal(String columnName)
throws SQLException {
return getBigDecimal(findColumn(columnName));
}
/**
* A column value can also be retrieved as a binary strea. This method is
* suitable for retrieving LONGVARBINARY values.
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return a Java InputStream that delivers the database column value as a
* stream of bytes. If the value is SQL NULL, then the result is
* null
*
* @exception java.sql.SQLException if a database access error occurs
*
* @see getAsciiStream
* @see getUnicodeStream
*/
public InputStream getBinaryStream(int columnIndex)
throws java.sql.SQLException {
checkRowPos();
byte[] b = getBytes(columnIndex);
if (b != null) {
return new ByteArrayInputStream(b);
}
return null;
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public InputStream getBinaryStream(String columnName)
throws java.sql.SQLException {
return getBinaryStream(findColumn(columnName));
}
/**
* JDBC 2.0 Get a BLOB column.
*
* @param columnIndex the first column is 1, the second is 2, ...
*
* @return an object representing a BLOB
*
* @throws SQLException if an error occurs.
* @throws java.sql.SQLException DOCUMENT ME!
*/
public java.sql.Blob getBlob(int columnIndex) throws SQLException {
checkRowPos();
if ((columnIndex < 1) || (columnIndex > fields.length)) {
throw new java.sql.SQLException("Column Index out of range ( "
+ columnIndex + " > " + fields.length + ").", SQLError.SQL_STATE_INVALID_COLUMN_NUMBER);
}
try {
if (thisRow[columnIndex - 1] == null) {
wasNullFlag = true;
} else {
wasNullFlag = false;
}
} catch (NullPointerException ex) {
wasNullFlag = true;
}
if (wasNullFlag) {
return null;
}
return new Blob(thisRow[columnIndex - 1]);
}
/**
* JDBC 2.0 Get a BLOB column.
*
* @param colName the column name
*
* @return an object representing a BLOB
*
* @throws SQLException if an error occurs.
*/
public java.sql.Blob getBlob(String colName) throws SQLException {
return getBlob(findColumn(colName));
}
/**
* Get the value of a column in the current row as a Java boolean
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return the column value, false for SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
*/
public boolean getBoolean(int columnIndex) throws java.sql.SQLException {
String stringVal = getString(columnIndex);
if ((stringVal != null) && (stringVal.length() > 0)) {
int c = Character.toLowerCase(stringVal.charAt(0));
return ((c == 't') || (c == 'y') || (c == '1')
|| stringVal.equals("-1"));
}
return false;
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public boolean getBoolean(String columnName) throws java.sql.SQLException {
return getBoolean(findColumn(columnName));
}
/**
* Get the value of a column in the current row as a Java byte.
*
* @param columnIndex the first column is 1, the second is 2,...
*
* @return the column value; 0 if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
* @throws SQLException DOCUMENT ME!
*/
public byte getByte(int columnIndex) throws java.sql.SQLException {
checkRowPos();
try {
if (thisRow[columnIndex - 1] == null) {
wasNullFlag = true;
} else {
wasNullFlag = false;
}
} catch (NullPointerException E) {
wasNullFlag = true;
}
if (wasNullFlag) {
return 0;
}
Field field = fields[columnIndex - 1];
switch (field.getMysqlType()) {
case MysqlDefs.FIELD_TYPE_DECIMAL:
case MysqlDefs.FIELD_TYPE_TINY:
case MysqlDefs.FIELD_TYPE_SHORT:
case MysqlDefs.FIELD_TYPE_LONG:
case MysqlDefs.FIELD_TYPE_FLOAT:
case MysqlDefs.FIELD_TYPE_DOUBLE:
case MysqlDefs.FIELD_TYPE_LONGLONG:
case MysqlDefs.FIELD_TYPE_INT24:
try {
String stringVal = getString(columnIndex);
int decimalIndex = stringVal.indexOf(".");
// Strip off the decimals
if (decimalIndex != -1) {
stringVal = stringVal.substring(0, decimalIndex);
}
return Byte.parseByte(stringVal);
} catch (NumberFormatException NFE) {
throw new SQLException("Value '" + getString(columnIndex)
+ "' is out of range [-127,127]", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
default:
try {
String stringVal = getString(columnIndex);
int decimalIndex = stringVal.indexOf(".");
// Strip off the decimals
if (decimalIndex != -1) {
stringVal = stringVal.substring(0, decimalIndex);
}
return Byte.parseByte(stringVal);
} catch (NumberFormatException NFE) {
throw new SQLException("Value '" + getString(columnIndex)
+ "' is out of range [-127,127]", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
// FIXME: JDBC-Compliance test is broken, wants to convert string->byte(num)
//return _thisRow[columnIndex - 1][0];
}
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public byte getByte(String columnName) throws java.sql.SQLException {
return getByte(findColumn(columnName));
}
/**
* Get the value of a column in the current row as a Java byte array.
*
*
* Be warned If the blob is huge, then you may run out of memory.
*
*
* @param columnIndex the first column is 1, the second is 2, ...
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @exception java.sql.SQLException if a database access error occurs
*/
public byte[] getBytes(int columnIndex) throws java.sql.SQLException {
checkRowPos();
try {
if (thisRow[columnIndex - 1] == null) {
wasNullFlag = true;
} else {
wasNullFlag = false;
}
} catch (NullPointerException E) {
wasNullFlag = true;
} catch (ArrayIndexOutOfBoundsException aioobEx) {
throw new java.sql.SQLException("Column Index out of range ( "
+ columnIndex + " > " + fields.length + ").", SQLError.SQL_STATE_INVALID_COLUMN_NUMBER);
}
if (wasNullFlag) {
return null;
} else {
return thisRow[columnIndex - 1];
}
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public byte[] getBytes(String columnName) throws java.sql.SQLException {
return getBytes(findColumn(columnName));
}
//--------------------------JDBC 2.0-----------------------------------
//---------------------------------------------------------------------
// Getter's and Setter's
//---------------------------------------------------------------------
/**
* JDBC 2.0
*
*
* Get the value of a column in the current row as a java.io.Reader.
*
*
* @param columnIndex the column to get the value from
*
* @return the value in the column as a java.io.Reader.
*
* @throws SQLException if an error occurs
*/
public java.io.Reader getCharacterStream(int columnIndex)
throws SQLException {
String stringVal = getString(columnIndex);
if (stringVal != null) {
return new StringReader(stringVal);
} else {
return null;
}
}
/**
* JDBC 2.0
*
*
* Get the value of a column in the current row as a java.io.Reader.
*
*
* @param columnName the column name to retrieve the value from
*
* @return the value as a java.io.Reader
*
* @throws SQLException if an error occurs
*/
public java.io.Reader getCharacterStream(String columnName)
throws SQLException {
return getCharacterStream(findColumn(columnName));
}
/**
* JDBC 2.0 Get a CLOB column.
*
* @param i the first column is 1, the second is 2, ...
*
* @return an object representing a CLOB
*
* @throws SQLException if an error occurs
*/
public java.sql.Clob getClob(int i) throws SQLException {
return new com.mysql.jdbc.Clob(getString(i));
}
/**
* JDBC 2.0 Get a CLOB column.
*
* @param colName the column name
*
* @return an object representing a CLOB
*
* @throws SQLException if an error occurs
*/
public java.sql.Clob getClob(String colName) throws SQLException {
return getClob(findColumn(colName));
}
/**
* JDBC 2.0 Return the concurrency of this result set. The concurrency
* used is determined by the statement that created the result set.
*
* @return the concurrency type, CONCUR_READ_ONLY, etc.
*
* @throws SQLException if a database-access error occurs
*/
public int getConcurrency() throws SQLException {
return (CONCUR_READ_ONLY);
}
/**
* DOCUMENT ME!
*
* @param conn the connection that created this result set.
*/
public void setConnection(com.mysql.jdbc.Connection conn) {
this.connection = conn;
if (this.connection != null) {
this.useStrictFloatingPoint = this.connection.useStrictFloatingPoint();
this.defaultTimeZone = this.connection.getDefaultTimeZone();
} else {
this.defaultTimeZone = TimeZone.getDefault();
}
}
/**
* Get the name of the SQL cursor used by this ResultSet
*
*
* In SQL, a result table is retrieved though a cursor that is named. The
* current row of a result can be updated or deleted using a positioned
* update/delete statement that references the cursor name.
*
*
*
* JDBC supports this SQL feature by providing the name of the SQL cursor
* used by a ResultSet. The current row of a ResulSet is also the current
* row of this SQL cursor.
*
*
*
* Note: If positioned update is not supported, a
* java.sql.SQLException is thrown.
*
*
* @return the ResultSet's SQL cursor name.
*
* @exception java.sql.SQLException if a database access error occurs
*/
public String getCursorName() throws java.sql.SQLException {
throw new java.sql.SQLException("Positioned Update not supported.",
"S1C00");
}
/**
* Get the value of a column in the current row as a java.sql.Date object
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return the column value; null if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
*/
public java.sql.Date getDate(int columnIndex) throws java.sql.SQLException {
return getDate(columnIndex, null);
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public java.sql.Date getDate(String columnName)
throws java.sql.SQLException {
return getDate(findColumn(columnName));
}
/**
* JDBC 2.0 Get the value of a column in the current row as a java.sql.Date
* object. Use the calendar to construct an appropriate millisecond value
* for the Date, if the underlying database doesn't store timezone
* information.
*
* @param columnIndex the first column is 1, the second is 2, ...
* @param cal the calendar to use in constructing the date
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @exception SQLException if a database-access error occurs.
* @throws java.sql.SQLException DOCUMENT ME!
*/
public java.sql.Date getDate(int columnIndex, Calendar cal)
throws SQLException {
Integer year = null;
Integer month = null;
Integer day = null;
String stringVal = "";
try {
stringVal = getString(columnIndex);
if (stringVal == null) {
return null;
} else {
int length = stringVal.length();
if ((length > 0) && (stringVal.charAt(0) == '0')
&& (stringVal.equals("0000-00-00")
|| stringVal.equals("0000-00-00 00:00:00")
|| stringVal.equals("00000000000000")
|| stringVal.equals("0"))) {
wasNullFlag = true;
return null;
} else if (fields[columnIndex - 1].getMysqlType() == MysqlDefs.FIELD_TYPE_TIMESTAMP) {
// Convert from TIMESTAMP
switch (length) {
case 14:
case 8: {
year = new Integer(stringVal.substring(0, 4));
month = new Integer(stringVal.substring(4, 6));
day = new Integer(stringVal.substring(6, 8));
return fastDateCreate(cal, year.intValue() - 1900,
month.intValue() - 1, day.intValue());
}
case 12:
case 10:
case 6: {
year = new Integer(stringVal.substring(0, 2));
if (year.intValue() <= 69) {
year = new Integer(year.intValue() + 100);
}
month = new Integer(stringVal.substring(2, 4));
day = new Integer(stringVal.substring(4, 6));
return fastDateCreate(cal, year.intValue(),
month.intValue() - 1, day.intValue());
}
case 4: {
year = new Integer(stringVal.substring(0, 4));
if (year.intValue() <= 69) {
year = new Integer(year.intValue() + 100);
}
month = new Integer(stringVal.substring(2, 4));
return fastDateCreate(cal, year.intValue(),
month.intValue() - 1, 1);
}
case 2: {
year = new Integer(stringVal.substring(0, 2));
if (year.intValue() <= 69) {
year = new Integer(year.intValue() + 100);
}
return fastDateCreate(cal, year.intValue(), 0, 1);
}
default:
throw new SQLException("Bad format for Date '"
+ stringVal + "' in column " + columnIndex + "("
+ fields[columnIndex - 1] + ").", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
} /* endswitch */
} else if (fields[columnIndex - 1].getMysqlType() == MysqlDefs.FIELD_TYPE_YEAR) {
year = new Integer(stringVal.substring(0, 4));
return fastDateCreate(cal, year.intValue() - 1900, 0, 1);
} else {
if (length < 10) {
throw new SQLException("Bad format for Date '"
+ stringVal + "' in column " + columnIndex + "("
+ fields[columnIndex - 1] + ").", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
year = new Integer(stringVal.substring(0, 4));
month = new Integer(stringVal.substring(5, 7));
day = new Integer(stringVal.substring(8, 10));
}
return fastDateCreate(cal, year.intValue() - 1900,
month.intValue() - 1, day.intValue());
}
} catch (Exception e) {
throw new java.sql.SQLException("Cannot convert value '"
+ stringVal + "' from column " + columnIndex + "(" + stringVal
+ " ) to DATE.", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
/**
* Get the value of a column in the current row as a java.sql.Date object.
* Use the calendar to construct an appropriate millisecond value for the
* Date, if the underlying database doesn't store timezone information.
*
* @param columnName is the SQL name of the column
* @param cal the calendar to use in constructing the date
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @exception SQLException if a database-access error occurs.
*/
public java.sql.Date getDate(String columnName, Calendar cal)
throws SQLException {
return getDate(columnName);
}
/**
* Get the value of a column in the current row as a Java double.
*
* @param columnIndex the first column is 1, the second is 2,...
*
* @return the column value; 0 if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
*/
public double getDouble(int columnIndex) throws java.sql.SQLException {
try {
return getDoubleInternal(columnIndex);
} catch (NumberFormatException E) {
throw new java.sql.SQLException("Bad format for number '"
+ new String(thisRow[columnIndex - 1]) + "' in column "
+ columnIndex + "(" + fields[columnIndex - 1] + ").", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public double getDouble(String columnName) throws java.sql.SQLException {
return getDouble(findColumn(columnName));
}
/**
* JDBC 2.0 Give a hint as to the direction in which the rows in this
* result set will be processed. The initial value is determined by the
* statement that produced the result set. The fetch direction may be
* changed at any time.
*
* @param direction the direction to fetch rows in.
*
* @exception SQLException if a database-access error occurs, or the result
* set type is TYPE_FORWARD_ONLY and direction is not
* FETCH_FORWARD. MM.MySQL actually ignores this, because it
* has the whole result set anyway, so the direction is
* immaterial.
*/
public void setFetchDirection(int direction) throws SQLException {
if ((direction != FETCH_FORWARD) && (direction != FETCH_REVERSE)
&& (direction != FETCH_UNKNOWN)) {
throw new SQLException("Illegal value for fetch direction", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
} else {
fetchDirection = direction;
}
}
/**
* JDBC 2.0 Returns the fetch direction for this result set.
*
* @return the fetch direction for this result set.
*
* @exception SQLException if a database-access error occurs
*/
public int getFetchDirection() throws SQLException {
return fetchDirection;
}
/**
* JDBC 2.0 Give the JDBC driver a hint as to the number of rows that
* should be fetched from the database when more rows are needed for this
* result set. If the fetch size specified is zero, then the JDBC driver
* ignores the value, and is free to make its own best guess as to what
* the fetch size should be. The default value is set by the statement
* that creates the result set. The fetch size may be changed at any
* time.
*
* @param rows the number of rows to fetch
*
* @exception SQLException if a database-access error occurs, or the
* condition 0 <= rows <= this.getMaxRows() is not
* satisfied. Currently ignored by this driver.
*/
public void setFetchSize(int rows) throws SQLException {
if (rows < 0) { /* || rows > getMaxRows()*/
throw new SQLException("Value must be between 0 and getMaxRows()",
SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
fetchSize = rows;
}
/**
* JDBC 2.0 Return the fetch size for this result set.
*
* @return the fetch size for this result set.
*
* @exception SQLException if a database-access error occurs
*/
public int getFetchSize() throws SQLException {
return fetchSize;
}
/**
* JDBC 2.0
*
*
* Determine if the cursor is on the first row of the result set.
*
*
* @return true if on the first row, false otherwise.
*
* @exception SQLException if a database-access error occurs.
*/
public boolean isFirst() throws SQLException {
if (Driver.TRACE) {
Object[] args = { };
Debug.methodCall(this, "isFirst", args);
}
boolean b = rowData.isFirst();
if (Driver.TRACE) {
Debug.returnValue(this, "isFirst", new Boolean(b));
}
return b;
}
/**
* Get the value of a column in the current row as a Java float.
*
* @param columnIndex the first column is 1, the second is 2,...
*
* @return the column value; 0 if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
* @throws SQLException DOCUMENT ME!
*/
public float getFloat(int columnIndex) throws java.sql.SQLException {
checkRowPos();
String val = null;
try {
val = getString(columnIndex);
if ((val != null) && (val.length() != 0)) {
float f = Float.parseFloat(val);
return f;
} else {
return 0;
}
} catch (NumberFormatException nfe) {
try {
// To do: warn on under/overflow?
return (float) Double.parseDouble(val);
} catch (NumberFormatException newNfe) {
; // ignore, it's not a number
}
throw new SQLException("Invalid value for getFloat() - '" + val
+ "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public float getFloat(String columnName) throws java.sql.SQLException {
return getFloat(findColumn(columnName));
}
/**
* Get the value of a column in the current row as a Java int.
*
* @param columnIndex the first column is 1, the second is 2,...
*
* @return the column value; 0 if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
* @throws SQLException DOCUMENT ME!
*/
public int getInt(int columnIndex) throws java.sql.SQLException {
String val = null;
try {
val = getString(columnIndex);
if ((val != null) && (val.length() != 0)) {
if ((val.indexOf("e") == -1) && (val.indexOf("E") == -1)
&& (val.indexOf(".") == -1)) {
return Integer.parseInt(val);
} else {
// Convert floating point
return (int) (Double.parseDouble(val));
}
} else {
return 0;
}
} catch (NumberFormatException nfe) {
try {
// To do: warn on under/overflow?
return (int) Double.parseDouble(val);
} catch (NumberFormatException newNfe) {
; // ignore, it's not a number
}
throw new SQLException("Invalid value for getInt() - '" + val + "'",
SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public int getInt(String columnName) throws java.sql.SQLException {
return getInt(findColumn(columnName));
}
/**
* JDBC 2.0
*
*
* Determine if the cursor is on the last row of the result set. Note:
* Calling isLast() may be expensive since the JDBC driver might need to
* fetch ahead one row in order to determine whether the current row is
* the last row in the result set.
*
*
* @return true if on the last row, false otherwise.
*
* @exception SQLException if a database-access error occurs.
*/
public boolean isLast() throws SQLException {
if (Driver.TRACE) {
Object[] args = { };
Debug.methodCall(this, "isLast", args);
}
boolean b = rowData.isLast();
if (Driver.TRACE) {
Debug.returnValue(this, "relative", new Boolean(b));
}
return b;
}
/**
* Get the value of a column in the current row as a Java long.
*
* @param columnIndex the first column is 1, the second is 2,...
*
* @return the column value; 0 if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
* @throws SQLException DOCUMENT ME!
*/
public long getLong(int columnIndex) throws java.sql.SQLException {
checkRowPos();
String val = null;
try {
val = getString(columnIndex);
if ((val != null) && (val.length() != 0)) {
if ((val.indexOf("e") == -1) && (val.indexOf("E") == -1)) {
return Long.parseLong(val);
} else {
// Convert floating point
return Double.doubleToLongBits(Double.parseDouble(val));
}
} else {
return 0;
}
} catch (NumberFormatException nfe) {
try {
// To do: warn on under/overflow?
return (long) Double.parseDouble(val);
} catch (NumberFormatException newNfe) {
; // ignore, it's not a number
}
throw new SQLException("Invalid value for getLong() - '" + val
+ "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public long getLong(String columnName) throws java.sql.SQLException {
return getLong(findColumn(columnName));
}
/**
* The numbers, types and properties of a ResultSet's columns are provided
* by the getMetaData method
*
* @return a description of the ResultSet's columns
*
* @exception java.sql.SQLException if a database access error occurs
*/
public java.sql.ResultSetMetaData getMetaData()
throws java.sql.SQLException {
return new com.mysql.jdbc.ResultSetMetaData(fields);
}
/**
* Get the value of a column in the current row as a Java object
*
*
* This method will return the value of the given column as a Java object.
* The type of the Java object will be the default Java Object type
* corresponding to the column's SQL type, following the mapping specified
* in the JDBC specification.
*
*
*
* This method may also be used to read database specific abstract data
* types.
*
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return a Object holding the column value
*
* @exception java.sql.SQLException if a database access error occurs
* @throws SQLException DOCUMENT ME!
*/
public Object getObject(int columnIndex) throws java.sql.SQLException {
checkRowPos();
if (Driver.TRACE) {
Object[] args = { new Integer(columnIndex) };
Debug.methodCall(this, "getObject", args);
}
try {
if (thisRow[columnIndex - 1] == null) {
wasNullFlag = true;
return null;
}
} catch (ArrayIndexOutOfBoundsException aioobEx) {
throw new java.sql.SQLException("Column Index out of range ( "
+ columnIndex + " > " + fields.length + ").", SQLError.SQL_STATE_INVALID_COLUMN_NUMBER);
}
wasNullFlag = false;
Field field;
field = fields[columnIndex - 1];
switch (field.getSQLType()) {
case Types.BIT:
return new Boolean(getBoolean(columnIndex));
case Types.TINYINT:
return new Integer(getInt(columnIndex));
case Types.SMALLINT:
return new Integer(getInt(columnIndex));
case Types.INTEGER:
if (field.isUnsigned()) {
return new Long(getLong(columnIndex));
} else {
return new Integer(getInt(columnIndex));
}
case Types.BIGINT:
if (field.isUnsigned()) {
return getBigDecimal(columnIndex);
} else {
return new Long(getLong(columnIndex));
}
case Types.DECIMAL:
case Types.NUMERIC:
String stringVal = getString(columnIndex);
BigDecimal val;
if (stringVal != null) {
if (stringVal.length() == 0) {
val = new BigDecimal(0);
return val;
}
try {
val = new BigDecimal(stringVal);
} catch (NumberFormatException ex) {
throw new java.sql.SQLException(
"Bad format for BigDecimal '" + stringVal
+ "' in column " + columnIndex + "("
+ fields[columnIndex - 1] + ").", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
return val;
} else {
return null;
}
case Types.REAL:
return new Float(getFloat(columnIndex));
case Types.FLOAT:
case Types.DOUBLE:
return new Double(getDouble(columnIndex));
case Types.CHAR:
case Types.VARCHAR:
case Types.LONGVARCHAR:
return getString(columnIndex);
case Types.BINARY:
case Types.VARBINARY:
case Types.LONGVARBINARY:
if (!field.isBlob()) {
return getString(columnIndex);
} else if (!field.isBinary()) {
return getString(columnIndex);
} else {
byte[] data = getBytes(columnIndex);
Object obj = data;
if ((data != null) && (data.length >= 2)) {
if ((data[0] == -84) && (data[1] == -19)) {
// Serialized object?
try {
ByteArrayInputStream bytesIn = new ByteArrayInputStream(data);
ObjectInputStream objIn = new ObjectInputStream(bytesIn);
obj = objIn.readObject();
objIn.close();
bytesIn.close();
} catch (ClassNotFoundException cnfe) {
throw new SQLException("Class not found: "
+ cnfe.toString()
+ " while reading serialized object");
} catch (IOException ex) {
obj = data; // not serialized?
}
}
}
return obj;
}
case Types.DATE:
return getDate(columnIndex);
case Types.TIME:
return getTime(columnIndex);
case Types.TIMESTAMP:
return getTimestamp(columnIndex);
default:
return getString(columnIndex);
}
}
/**
* Get the value of a column in the current row as a Java object
*
*
* This method will return the value of the given column as a Java object.
* The type of the Java object will be the default Java Object type
* corresponding to the column's SQL type, following the mapping specified
* in the JDBC specification.
*
*
*
* This method may also be used to read database specific abstract data
* types.
*
*
* @param columnName is the SQL name of the column
*
* @return a Object holding the column value
*
* @exception java.sql.SQLException if a database access error occurs
*/
public Object getObject(String columnName) throws java.sql.SQLException {
return getObject(findColumn(columnName));
}
/**
* JDBC 2.0 Returns the value of column i as a Java object. Use the map to
* determine the class from which to construct data of SQL structured and
* distinct types.
*
* @param i the first column is 1, the second is 2, ...
* @param map the mapping from SQL type names to Java classes
*
* @return an object representing the SQL value
*
* @throws SQLException because this is not implemented
*/
public Object getObject(int i, java.util.Map map) throws SQLException {
return getObject(i);
}
/**
* JDBC 2.0 Returns the value of column i as a Java object. Use the map to
* determine the class from which to construct data of SQL structured and
* distinct types.
*
* @param colName the column name
* @param map the mapping from SQL type names to Java classes
*
* @return an object representing the SQL value
*
* @throws SQLException as this is not implemented
*/
public Object getObject(String colName, java.util.Map map)
throws SQLException {
return getObject(findColumn(colName), map);
}
/**
* JDBC 2.0 Get a REF(<structured-type>) column.
*
* @param i the first column is 1, the second is 2, ...
*
* @return an object representing data of an SQL REF type
*
* @throws SQLException as this is not implemented
* @throws NotImplemented DOCUMENT ME!
*/
public java.sql.Ref getRef(int i) throws SQLException {
throw new NotImplemented();
}
/**
* JDBC 2.0 Get a REF(<structured-type>) column.
*
* @param colName the column name
*
* @return an object representing data of an SQL REF type
*
* @throws SQLException as this method is not implemented.
* @throws NotImplemented DOCUMENT ME!
*/
public java.sql.Ref getRef(String colName) throws SQLException {
throw new NotImplemented();
}
/**
* JDBC 2.0
*
*
* Determine the current row number. The first row is number 1, the second
* number 2, etc.
*
*
* @return the current row number, else return 0 if there is no current row
*
* @exception SQLException if a database-access error occurs.
*/
public int getRow() throws SQLException {
if (Driver.TRACE) {
Object[] args = { };
Debug.methodCall(this, "getRow", args);
}
int currentRow = rowData.getCurrentRowNumber();
int row = 0;
// Non-dynamic result sets can be interrogated
// for this information
if (!rowData.isDynamic()) {
if ((currentRow < 0) || rowData.isAfterLast() || rowData.isEmpty()) {
row = 0;
} else {
row = currentRow + 1;
}
} else {
// dynamic (streaming) can not
row = currentRow + 1;
}
if (Driver.TRACE) {
Debug.returnValue(this, "getRow", new Integer(row));
}
if (Driver.TRACE) {
Debug.returnValue(this, "getRow", new Integer(row));
}
return row;
}
/**
* Get the value of a column in the current row as a Java short.
*
* @param columnIndex the first column is 1, the second is 2,...
*
* @return the column value; 0 if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
* @throws SQLException DOCUMENT ME!
*/
public short getShort(int columnIndex) throws java.sql.SQLException {
checkRowPos();
String val = null;
try {
val = getString(columnIndex);
if ((val != null) && (val.length() != 0)) {
if ((val.indexOf("e") == -1) && (val.indexOf("E") == -1)
&& (val.indexOf(".") == -1)) {
return Short.parseShort(val);
} else {
// Convert floating point
return (short) (Double.parseDouble(val));
}
} else {
return 0;
}
} catch (NumberFormatException nfe) {
try {
// To do: warn on under/overflow?
return (short) Double.parseDouble(val);
} catch (NumberFormatException newNfe) {
; // ignore, it's not a number
}
throw new SQLException("Invalid value for getShort() - '" + val
+ "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public short getShort(String columnName) throws java.sql.SQLException {
return getShort(findColumn(columnName));
}
/**
* JDBC 2.0 Return the Statement that produced the ResultSet.
*
* @return the Statment that produced the result set, or null if the result
* was produced some other way.
*
* @exception SQLException if a database-access error occurs
*/
public java.sql.Statement getStatement() throws SQLException {
return (java.sql.Statement) owningStatement;
}
/**
* Get the value of a column in the current row as a Java String
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return the column value, null for SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
* @throws SQLException DOCUMENT ME!
*/
public String getString(int columnIndex) throws java.sql.SQLException {
checkRowPos();
if (fields == null) {
throw new java.sql.SQLException("Query generated no fields for ResultSet",
SQLError.SQL_STATE_INVALID_COLUMN_NUMBER);
}
try {
if (thisRow[columnIndex - 1] == null) {
wasNullFlag = true;
return null;
} else {
wasNullFlag = false;
}
} catch (NullPointerException E) {
wasNullFlag = true;
return null;
} catch (ArrayIndexOutOfBoundsException aioobEx) {
throw new java.sql.SQLException("Column Index out of range ( "
+ columnIndex + " > " + fields.length + ").", SQLError.SQL_STATE_INVALID_COLUMN_NUMBER);
}
String stringVal = null;
columnIndex--; // JDBC is 1-based, Java is not !?
if ((connection != null) && connection.useUnicode()) {
try {
String encoding = this.fields[columnIndex].getCharacterSet();
if (encoding == null) {
stringVal = new String(thisRow[columnIndex]);
} else {
SingleByteCharsetConverter converter = this.connection.getCharsetConverter(encoding);
if (converter != null) {
stringVal = converter.toString(thisRow[columnIndex]);
} else {
stringVal = new String(thisRow[columnIndex], encoding);
}
}
} catch (java.io.UnsupportedEncodingException E) {
throw new SQLException("Unsupported character encoding '"
+ connection.getEncoding() + "'.", SQLError.SQL_STATE_GENERAL_ERROR);
}
} else {
stringVal = StringUtils.toAsciiString(thisRow[columnIndex]);
}
return stringVal;
}
/**
* The following routines simply convert the columnName into a columnIndex
* and then call the appropriate routine above.
*
* @param columnName is the SQL name of the column
*
* @return the column value
*
* @exception java.sql.SQLException if a database access error occurs
*/
public String getString(String columnName) throws java.sql.SQLException {
return getString(findColumn(columnName));
}
/**
* Get the value of a column in the current row as a java.sql.Time object
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return the column value; null if SQL NULL
*
* @throws java.sql.SQLException if a database access error occurs
*/
public synchronized Time getTime(int columnIndex) throws java.sql.SQLException {
return getTimeInternal(columnIndex, this.defaultTimeZone);
}
/**
* Get the value of a column in the current row as a java.sql.Time object.
*
* @param columnName is the SQL name of the column
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @throws java.sql.SQLException if a database-access error occurs.
*/
public Time getTime(String columnName) throws java.sql.SQLException {
return getTime(findColumn(columnName));
}
/**
* Get the value of a column in the current row as a java.sql.Time object.
* Use the calendar to construct an appropriate millisecond value for the
* Time, if the underlying database doesn't store timezone information.
*
* @param columnIndex the first column is 1, the second is 2, ...
* @param cal the calendar to use in constructing the time
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @exception SQLException if a database-access error occurs.
*/
public java.sql.Time getTime(int columnIndex, Calendar cal)
throws SQLException {
return getTimeInternal(columnIndex, cal.getTimeZone());
}
/**
* Get the value of a column in the current row as a java.sql.Time object.
* Use the calendar to construct an appropriate millisecond value for the
* Time, if the underlying database doesn't store timezone information.
*
* @param columnName is the SQL name of the column
* @param cal the calendar to use in constructing the time
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @exception SQLException if a database-access error occurs.
*/
public java.sql.Time getTime(String columnName, Calendar cal)
throws SQLException {
return getTime(findColumn(columnName), cal);
}
/**
* Get the value of a column in the current row as a java.sql.Timestamp
* object
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return the column value; null if SQL NULL
*
* @exception java.sql.SQLException if a database access error occurs
*/
public synchronized Timestamp getTimestamp(int columnIndex) throws java.sql.SQLException {
return getTimestampInternal(columnIndex, this.defaultTimeZone);
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public Timestamp getTimestamp(String columnName)
throws java.sql.SQLException {
return getTimestamp(findColumn(columnName));
}
/**
* Get the value of a column in the current row as a java.sql.Timestamp
* object. Use the calendar to construct an appropriate millisecond value
* for the Timestamp, if the underlying database doesn't store timezone
* information.
*
* @param columnIndex the first column is 1, the second is 2, ...
* @param cal the calendar to use in constructing the timestamp
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @exception SQLException if a database-access error occurs.
*/
public java.sql.Timestamp getTimestamp(int columnIndex, Calendar cal)
throws SQLException {
return getTimestampInternal(columnIndex, cal.getTimeZone());
}
/**
* Get the value of a column in the current row as a java.sql.Timestamp
* object. Use the calendar to construct an appropriate millisecond value
* for the Timestamp, if the underlying database doesn't store timezone
* information.
*
* @param columnName is the SQL name of the column
* @param cal the calendar to use in constructing the timestamp
*
* @return the column value; if the value is SQL NULL, the result is null
*
* @exception SQLException if a database-access error occurs.
*/
public java.sql.Timestamp getTimestamp(String columnName, Calendar cal)
throws SQLException {
return getTimestamp(findColumn(columnName), cal);
}
/**
* JDBC 2.0 Return the type of this result set. The type is determined
* based on the statement that created the result set.
*
* @return TYPE_FORWARD_ONLY, TYPE_SCROLL_INSENSITIVE, or
* TYPE_SCROLL_SENSITIVE
*
* @exception SQLException if a database-access error occurs
*/
public int getType() throws SQLException {
return resultSetType;
}
/**
* @see ResultSet#getURL(int)
*/
public URL getURL(int colIndex) throws SQLException {
String val = getString(colIndex);
if (val == null) {
return null;
} else {
try {
return new URL(val);
} catch (MalformedURLException mfe) {
throw new SQLException("Malformed URL '" + val + "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
}
/**
* @see ResultSet#getURL(String)
*/
public URL getURL(String colName) throws SQLException {
String val = getString(colName);
if (val == null) {
return null;
} else {
try {
return new URL(val);
} catch (MalformedURLException mfe) {
throw new SQLException("Malformed URL '" + val + "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
}
}
}
/**
* A column value can also be retrieved as a stream of Unicode characters.
* We implement this as a binary stream.
*
* @param columnIndex the first column is 1, the second is 2...
*
* @return a Java InputStream that delivers the database column value as a
* stream of two byte Unicode characters. If the value is SQL
* NULL, then the result is null
*
* @exception java.sql.SQLException if a database access error occurs
*
* @see getAsciiStream
* @see getBinaryStream
*/
public InputStream getUnicodeStream(int columnIndex)
throws java.sql.SQLException {
checkRowPos();
return getBinaryStream(columnIndex);
}
/**
* DOCUMENT ME!
*
* @param columnName DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws java.sql.SQLException DOCUMENT ME!
*/
public InputStream getUnicodeStream(String columnName)
throws java.sql.SQLException {
return getUnicodeStream(findColumn(columnName));
}