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package com.sun.org.apache.bcel.internal.classfile;


import  com.sun.org.apache.bcel.internal.Constants;
import  java.io.*;

This class is derived from the abstract Constant class and represents a reference to a Double object.
Author: M. Dahm
See Also:
/** * This class is derived from the abstract * <A HREF="com.sun.org.apache.bcel.internal.classfile.Constant.html">Constant</A> class * and represents a reference to a Double object. * * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> * @see Constant */
public final class ConstantDouble extends Constant implements ConstantObject { private double bytes;
Params:
  • bytes – Data
/** * @param bytes Data */
public ConstantDouble(double bytes) { super(Constants.CONSTANT_Double); this.bytes = bytes; }
Initialize from another object.
/** * Initialize from another object. */
public ConstantDouble(ConstantDouble c) { this(c.getBytes()); }
Initialize instance from file data.
Params:
  • file – Input stream
Throws:
/** * Initialize instance from file data. * * @param file Input stream * @throws IOException */
ConstantDouble(DataInputStream file) throws IOException { this(file.readDouble()); }
Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
Params:
  • v – Visitor object
/** * Called by objects that are traversing the nodes of the tree implicitely * defined by the contents of a Java class. I.e., the hierarchy of methods, * fields, attributes, etc. spawns a tree of objects. * * @param v Visitor object */
public void accept(Visitor v) { v.visitConstantDouble(this); }
Dump constant double to file stream in binary format.
Params:
  • file – Output file stream
Throws:
/** * Dump constant double to file stream in binary format. * * @param file Output file stream * @throws IOException */
public final void dump(DataOutputStream file) throws IOException { file.writeByte(tag); file.writeDouble(bytes); }
Returns:data, i.e., 8 bytes.
/** * @return data, i.e., 8 bytes. */
public final double getBytes() { return bytes; }
@parambytes.
/** * @param bytes. */
public final void setBytes(double bytes) { this.bytes = bytes; }
Returns:String representation.
/** * @return String representation. */
public final String toString() { return super.toString() + "(bytes = " + bytes + ")"; }
Returns:Double object
/** @return Double object */
public Object getConstantValue(ConstantPool cp) { return new Double(bytes); } }