RecordOutput.java
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:5k
- /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- package org.apache.hadoop.record;
- import java.io.IOException;
- import java.util.TreeMap;
- import java.util.ArrayList;
- /**
- * Interface that alll the serializers have to implement.
- */
- public interface RecordOutput {
- /**
- * Write a byte to serialized record.
- * @param b Byte to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeByte(byte b, String tag) throws IOException;
-
- /**
- * Write a boolean to serialized record.
- * @param b Boolean to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeBool(boolean b, String tag) throws IOException;
-
- /**
- * Write an integer to serialized record.
- * @param i Integer to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeInt(int i, String tag) throws IOException;
-
- /**
- * Write a long integer to serialized record.
- * @param l Long to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeLong(long l, String tag) throws IOException;
-
- /**
- * Write a single-precision float to serialized record.
- * @param f Float to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeFloat(float f, String tag) throws IOException;
-
- /**
- * Write a double precision floating point number to serialized record.
- * @param d Double to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeDouble(double d, String tag) throws IOException;
-
- /**
- * Write a unicode string to serialized record.
- * @param s String to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeString(String s, String tag) throws IOException;
-
- /**
- * Write a buffer to serialized record.
- * @param buf Buffer to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void writeBuffer(Buffer buf, String tag)
- throws IOException;
-
- /**
- * Mark the start of a record to be serialized.
- * @param r Record to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void startRecord(Record r, String tag) throws IOException;
-
- /**
- * Mark the end of a serialized record.
- * @param r Record to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void endRecord(Record r, String tag) throws IOException;
-
- /**
- * Mark the start of a vector to be serialized.
- * @param v Vector to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void startVector(ArrayList v, String tag) throws IOException;
-
- /**
- * Mark the end of a serialized vector.
- * @param v Vector to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void endVector(ArrayList v, String tag) throws IOException;
-
- /**
- * Mark the start of a map to be serialized.
- * @param m Map to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void startMap(TreeMap m, String tag) throws IOException;
-
- /**
- * Mark the end of a serialized map.
- * @param m Map to be serialized
- * @param tag Used by tagged serialization formats (such as XML)
- * @throws IOException Indicates error in serialization
- */
- public void endMap(TreeMap m, String tag) throws IOException;
- }