org.jboss.classfilewriter.annotations.AnnotationValue Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
*
* Copyright 2012 Red Hat, Inc.
*
* Licensed 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.jboss.classfilewriter.annotations;
import org.jboss.classfilewriter.WritableEntry;
import org.jboss.classfilewriter.constpool.ConstPool;
import org.jboss.classfilewriter.util.ByteArrayDataOutputStream;
import java.io.IOException;
/**
* Represents an annotation name/value pair. This class can also represent a value an an array valued annotation instance, if
* the name is null
*
* @author Stuart Douglas
*
*/
public abstract class AnnotationValue implements WritableEntry {
private final String name;
private final int nameIndex;
protected AnnotationValue(ConstPool constPool, String name) {
this.name = name;
if (name != null) {
this.nameIndex = constPool.addUtf8Entry(name);
} else {
this.nameIndex = -1;
}
}
public void write(ByteArrayDataOutputStream stream) throws IOException {
if (nameIndex != -1) {
stream.writeShort(nameIndex);
}
stream.writeByte(getTag());
writeData(stream);
}
public abstract void writeData(ByteArrayDataOutputStream stream) throws IOException;
public String getName() {
return name;
}
public abstract char getTag();
}