JBoolean.java
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:3k
- /**
- * 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.compiler;
- /**
- */
- public class JBoolean extends JType {
-
- class JavaBoolean extends JType.JavaType {
-
- JavaBoolean() {
- super("boolean", "Bool", "Boolean", "TypeID.RIOType.BOOL");
- }
-
- void genCompareTo(CodeBuffer cb, String fname, String other) {
- cb.append(Consts.RIO_PREFIX + "ret = ("+fname+" == "+other+")? 0 : ("+
- fname+"?1:-1);n");
- }
-
- String getTypeIDObjectString() {
- return "org.apache.hadoop.record.meta.TypeID.BoolTypeID";
- }
- void genHashCode(CodeBuffer cb, String fname) {
- cb.append(Consts.RIO_PREFIX + "ret = ("+fname+")?0:1;n");
- }
-
- // In Binary format, boolean is written as byte. true = 1, false = 0
- void genSlurpBytes(CodeBuffer cb, String b, String s, String l) {
- cb.append("{n");
- cb.append("if ("+l+"<1) {n");
- cb.append("throw new java.io.IOException("Boolean is exactly 1 byte."+
- " Provided buffer is smaller.");n");
- cb.append("}n");
- cb.append(s+"++; "+l+"--;n");
- cb.append("}n");
- }
-
- // In Binary format, boolean is written as byte. true = 1, false = 0
- void genCompareBytes(CodeBuffer cb) {
- cb.append("{n");
- cb.append("if (l1<1 || l2<1) {n");
- cb.append("throw new java.io.IOException("Boolean is exactly 1 byte."+
- " Provided buffer is smaller.");n");
- cb.append("}n");
- cb.append("if (b1[s1] != b2[s2]) {n");
- cb.append("return (b1[s1]<b2[s2])? -1 : 0;n");
- cb.append("}n");
- cb.append("s1++; s2++; l1--; l2--;n");
- cb.append("}n");
- }
- }
-
- class CppBoolean extends CppType {
-
- CppBoolean() {
- super("bool");
- }
-
- String getTypeIDObjectString() {
- return "new ::hadoop::TypeID(::hadoop::RIOTYPE_BOOL)";
- }
- }
- /** Creates a new instance of JBoolean */
- public JBoolean() {
- setJavaType(new JavaBoolean());
- setCppType(new CppBoolean());
- setCType(new CType());
- }
-
- String getSignature() {
- return "z";
- }
- }