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package com.sun.jdo.api.persistence.enhancer.classfile;

import java.io.*;

/**
 * AnnotatedMethodAttribute represents a class level attribute
 * class file which identifies the level of annotation of the class.
 */

public class AnnotatedMethodAttribute extends ClassAttribute {

  /* The expected attribute name */
    public final static String expectedAttrName = "filter.annotatedMethod";//NOI18N

  /* The expected attribute version */
  public final static short expectedAttrVersion = 1;

  /* Bit mask indicating that the class was filter generated */
  public final static short generatedFlag = 0x1;

  /* Bit mask indicating that the class was filter annotated */
  public final static short annotatedFlag = 0x2;

    /* Bit mask indicating that the class was "repackaged" *///NOI18N
  public final static short modifiedFlag = 0x4;

  /* The version of the attribute */
  private short attrVersion;

  /* Flags associated with the annotation */
  private short annotationFlags;

  /* list of targets in the code sequence delimiting inserted instruction
   * sequences.  Even index targets are a range start (inclusive) and odd
   * targets represent a range end (exclusive) */
  private InsnTarget annotationRanges[];

  /* public accessors */

  public short getVersion() {
    return attrVersion;
  }

  public void setVersion(short version) {
    attrVersion = version;
  }

  public short getFlags() {
    return annotationFlags;
  }

  public void setFlags(short flags) {
    annotationFlags = flags;
  }

  public InsnTarget[] getAnnotationRanges() {
    return annotationRanges;
  }

  public void setAnnotationRanges(InsnTarget[] ranges) {
    annotationRanges = ranges;
  }

  /**
   * Constructor
   */
  public AnnotatedMethodAttribute(
	ConstUtf8 nameAttr, short version, short annFlags,
	InsnTarget[] annRanges) {
    super(nameAttr);
    attrVersion = version;
    annotationFlags = annFlags;
    annotationRanges = annRanges;
  }

  /* package local methods */

  static AnnotatedMethodAttribute read(
	ConstUtf8 attrName, DataInputStream data, CodeEnv env)
    throws IOException {
    short version = data.readShort();
    short annFlags = data.readShort();

    short nRanges = data.readShort();

    InsnTarget ranges[] = new InsnTarget[nRanges*2];
    for (int i=0; i