com.sun.jdo.api.persistence.enhancer.classfile.ConstantValueAttribute Maven / Gradle / Ivy
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package com.sun.jdo.api.persistence.enhancer.classfile;
import java.io.*;
/**
* ConstantValueAttribute represents a constant value attribute
* in a class file. These attributes are used as initialization
* values for static fields.
*/
public class ConstantValueAttribute extends ClassAttribute {
/* The expected name of this attribute */
public static final String expectedAttrName = "ConstantValue";//NOI18N
/* The value */
private ConstValue constantValue;
/* public accessors */
public ConstValue value() {
return constantValue;
}
/**
* Construct a constant value attribute
*/
public ConstantValueAttribute(ConstUtf8 attrName, ConstValue value) {
super(attrName);
constantValue = value;
}
/* package local methods */
static ConstantValueAttribute read (ConstUtf8 attrName,
DataInputStream data, ConstantPool pool)
throws IOException {
int index = 0;
index = data.readUnsignedShort();
return new ConstantValueAttribute(attrName,
(ConstValue) pool.constantAt(index));
}
void write(DataOutputStream out) throws IOException {
out.writeShort(attrName().getIndex());
out.writeInt(2);
out.writeShort(constantValue.getIndex());
}
void print(PrintStream out, int indent) {
ClassPrint.spaces(out, indent);
out.println("ConstantValue: " + constantValue.toString());//NOI18N
}
}