/*

 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

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

 * <A HREF="com.sun.org.apache.bcel.internal.classfile.Constant.html">Constant</A> class

 * and represents a reference to a long object.

 *

 * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>

 * @see     Constant

 */

public final class ConstantLong extends Constant implements ConstantObject {

  private long bytes;

  /**

   * @param bytes Data

   */

  public ConstantLong(long bytes)

  {

    super(Constants.CONSTANT_Long);

    this.bytes = bytes;

  }

  /**

   * Initialize from another object.

   */

  public ConstantLong(ConstantLong c) {

    this(c.getBytes());

  }

  /**

   * Initialize instance from file data.

   *

   * @param file Input stream

   * @throws IOException

   */

  ConstantLong(DataInputStream file) throws IOException

  {

    this(file.readLong());

  }

  /**

   * 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.visitConstantLong(this);

  }

  /**

   * Dump constant long 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.writeLong(bytes);

  }

  /**

   * @return data, i.e., 8 bytes.

   */

  public final long getBytes() { return bytes; }

  /**

   * @param bytes.

   */

  public final void setBytes(long bytes) {

    this.bytes = bytes;

  }

  /**

   * @return String representation.

   */

  public final String toString() {

    return super.toString() + "(bytes = " + bytes + ")";

  }

  /** @return Long object

   */

  public Object getConstantValue(ConstantPool cp) {

    return new Long(bytes);

  }

}