How to use

addFieldref

method

in

org.apache.bcel.generic.ConstantPoolGen

public int getIndex(FieldDescriptor f) {
  Integer i = addedFields.get(f);
  if (i != null) {
    return i;
  }
  int index = cpg.addFieldref(f.getSlashedClassName(), f.getName(), f.getSignature());
  addedFields.put(f, index);
  return index;
}
public void optimize(InstructionList instructionList) {

/**
 * Translates an object of this type to its unboxed representation.
 */ 
public void translateUnBox(ClassGenerator classGen,
        MethodGenerator methodGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
il.append(new CHECKCAST(cpg.addClass(RUNTIME_NODE_CLASS)));
il.append(new GETFIELD(cpg.addFieldref(RUNTIME_NODE_CLASS,
            NODE_FIELD,
            NODE_FIELD_SIG)));
}

  /**
   * Generates code that loads the array that will contain the character
   * data represented by this Text node, followed by the offset of the
   * data from the start of the array, and then the length of the data.
   *
   * The pre-condition to calling this method is that
   * canLoadAsArrayOffsetLength() returns true.
   * @see #canLoadArrayOffsetLength()
   */
  public void loadAsArrayOffsetLength(ClassGenerator classGen,
                    MethodGenerator methodGen) {
    final ConstantPoolGen cpg = classGen.getConstantPool();
    final InstructionList il = methodGen.getInstructionList();
    final XSLTC xsltc = classGen.getParser().getXSLTC();

    // The XSLTC object keeps track of character data
    // that is to be stored in char arrays.
    final int offset = xsltc.addCharacterData(_text);
    final int length = _text.length();
    String charDataFieldName =
      STATIC_CHAR_DATA_FIELD + (xsltc.getCharacterDataCount()-1);

    il.append(new GETSTATIC(cpg.addFieldref(xsltc.getClassName(),
                    charDataFieldName,
                    STATIC_CHAR_DATA_FIELD_SIG)));
    il.append(new PUSH(cpg, offset));
    il.append(new PUSH(cpg, _text.length()));
  }
}

il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
            NAMES_INDEX,
            NAMES_INDEX_SIG)));
il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
            URIS_INDEX,
            URIS_INDEX_SIG)));
il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
            TYPES_INDEX,
            TYPES_INDEX_SIG)));
il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
            NAMESPACE_INDEX,
            NAMESPACE_INDEX_SIG)));

il.append(new GETSTATIC(cpg.addFieldref(_className,
                    STATIC_NAMES_ARRAY_FIELD,
                    NAMES_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS,
                    NAMES_INDEX,
                    NAMES_INDEX_SIG)));
il.append(new GETSTATIC(cpg.addFieldref(_className,
                    STATIC_URIS_ARRAY_FIELD,
                    URIS_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS,
                    URIS_INDEX,
                    URIS_INDEX_SIG)));
il.append(new GETSTATIC(cpg.addFieldref(_className,
                    STATIC_TYPES_ARRAY_FIELD,
                    TYPES_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS,
                    TYPES_INDEX,
                    TYPES_INDEX_SIG)));
il.append(new GETSTATIC(cpg.addFieldref(_className,
                    STATIC_NAMESPACE_ARRAY_FIELD,
                    NAMESPACE_INDEX_SIG)));
il.append(new PUTFIELD(cpg.addFieldref(TRANSLET_CLASS,
                    NAMESPACE_INDEX,
                    NAMESPACE_INDEX_SIG)));
il.append(classGen.loadTranslet());

il.append(ALOAD_0);
il.append(new GETFIELD(
  cpg.addFieldref(variableClosure.getInnerClassName(), 
  var.getEscapedName(), varType.toSignature())));
  cpg.addFieldref(_className, var.getEscapedName(), 
  varType.toSignature())));

         Util.getJCRefType(NODE_ITERATOR_SIG),
         null, null);
field = cpg.addFieldref(NODE_COUNTER, "_iterator",
      ITERATOR_FIELD_SIG);
       Util.getJCRefType(TRANSLET_SIG),
       null, null);
field = cpg.addFieldref(NODE_COUNTER, "_translet",
      "Lorg/apache/xalan/xsltc/Translet;");
         Util.getJCRefType(DOM_INTF_SIG),
         null, null);
field = cpg.addFieldref(_className, "_document", DOM_INTF_SIG);

  il.append(ALOAD_0);
  il.append(new GETFIELD(
  cpg.addFieldref(variableClosure.getInnerClassName(), 
    name, signature)));
il.append(new CHECKCAST(cpg.addClass(className)));
il.append(new GETFIELD(cpg.addFieldref(className,name,signature)));

  il.append(ALOAD_0);
  il.append(new GETFIELD(
  cpg.addFieldref(variableClosure.getInnerClassName(), 
    name, signature)));
il.append(new CHECKCAST(cpg.addClass(className)));
il.append(new GETFIELD(cpg.addFieldref(className,name,signature)));

il.append(new PUTFIELD(cpg.addFieldref(classGen.getClassName(),
            name, signature)));

final int ac = argumentCount();
final int domField = cpg.addFieldref(classGen.getClassName(),
                   DOM_FIELD,
                   DOM_INTF_SIG);

il.append(filterGen.loadTranslet());
il.append(new CHECKCAST(cpg.addClass(className)));
il.append(new GETFIELD(cpg.addFieldref(className,
            DOM_FIELD, DOM_INTF_SIG)));
local.setStart(il.append(new ASTORE(local.getIndex())));

  il.append(new GETSTATIC(cpg.addFieldref(LOCALE_CLASS, "US",
                      LOCALE_SIG)));
il.append(new INVOKESPECIAL(init));

il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
                    "stringValueHandler",
                    STRING_VALUE_HANDLER_SIG)));

fieldIndexes[_level] = cpg.addFieldref(classGen.getClassName(), 
          FieldNames[_level],
          NODE_COUNTER_SIG);

il.append(new GETFIELD(cpg.addFieldref(className, "_dom",
          DOM_INTF_SIG)));

il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
            "stringValueHandler",
            STRING_VALUE_HANDLER_SIG)));

  il.append(new CHECKCAST(cpg.addClass(className)));
il.append(new PUTFIELD(cpg.addFieldref(classGen.getClassName(),
            name, signature)));

il.append(new GETFIELD(cpg.addFieldref(TRANSLET_CLASS,
          "stringValueHandler",
          STRING_VALUE_HANDLER_SIG)));

   null, cpg.getConstantPool());
classGen.addField(iterator);
iteratorIndex = cpg.addFieldref(classGen.getClassName(), 
        iteratorName,
        NODE_ITERATOR_SIG);