Examples of org.apache.bcel.generic.FieldGen

org.apache.bcel.generic.FieldGen
Template class for building up a field. The only extraordinary thing one can do is to add a constant value attribute to a field (which must of course be compatible with to the declared type). @version $Id: FieldGen.java,v 1.1.1.1 2001/10/29 20:00:12 jvanzyl Exp $ @author M. Dahm @see Field

    public ClassItem addField(String type, String name, int access, String init) {
        if (init != null && init.length() > 0x7FFF) {
            throw new IllegalArgumentException("Internal error - string too long");
        }
        deleteField(name);
        FieldGen fgen = new FieldGen(access,
            Type.getType(Utility.getSignature(type)), name, getConstPoolGen());
        fgen.setInitValue(init);
        Field field = fgen.getField();
        getClassGen().addField(field);
        m_isModified = true;
        m_isHashCurrent = false;
        return new ClassItem(name, this, field);
    }

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     * @param init initial value for field
     * @return field information
     */
    public ClassItem addField(String type, String name, int access, int init) {
        deleteField(name);
        FieldGen fgen = new FieldGen(access,
            Type.getType(Utility.getSignature(type)), name, getConstPoolGen());
        fgen.setInitValue(init);
        Field field = fgen.getField();
        getClassGen().addField(field);
        m_isModified = true;
        m_isHashCurrent = false;
        return new ClassItem(name, this, field);
    }

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            }
        }
        
        // no exact match, so replace any existing field with same name
        deleteField(name);
        FieldGen fgen = new FieldGen(access,
            Type.getType(Utility.getSignature(type)), name, getConstPoolGen());
        fgen.setInitValue(init);
        Field field = fgen.getField();
        getClassGen().addField(field);
        m_isModified = true;
        m_isHashCurrent = false;
        return new ClassItem(name, this, field);
    }

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     * @param access access flags for field
     * @return field information
     */
    public ClassItem addField(String type, String name, int access) {
        deleteField(name);
        FieldGen fgen = new FieldGen(access,
            Type.getType(Utility.getSignature(type)), name, getConstPoolGen());
        Field field = fgen.getField();
        getClassGen().addField(field);
        m_isModified = true;
        m_isHashCurrent = false;
        return new ClassItem(name, this, field);
    }

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        //
        // Construct field for the handler reference
        //
        Class handlerClass = handlerMethodRef.getDeclaringClass();
        FieldGen handlerFieldGen = new FieldGen(Constants.ACC_PRIVATE
                | Constants.ACC_FINAL, translate(handlerClass), Util
                .handlerFieldName(), cp);
        newStubClass.addField(handlerFieldGen.getField());


        //
        // Construct the method that gets the stub handler.
        //
        generateHandlerGetter(newStubClass, handlerFieldGen);


        //
        // construct the field that holds the initializer
        //
        FieldGen initializerFieldGen = new FieldGen(Constants.ACC_PRIVATE
                | Constants.ACC_STATIC, translate(StubInitializer.class), Util
                .initializerFieldName(), cp);
        newStubClass.addField(initializerFieldGen.getField());


        //
        // Emit constructor
        //
        emitInitializerConstructor(newStubClass, handlerFieldGen,
                initializerFieldGen);


        //
        // Construct data fields
        //
        FieldGen[] dataFieldGens = new FieldGen[methods.length];
        for (int i = 0; i < methods.length; i++) {
            MethodRef method = methods[i];


            dataFieldGens[i] = new FieldGen(Constants.ACC_PRIVATE
                    | Constants.ACC_STATIC, typeOfDataFields, Util
                    .methodFieldName(i), cp);


            newStubClass.addField(dataFieldGens[i].getField());
        }

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        //
        // Construct field for the handler reference
        //
        Class handlerClass = handlerMethodRef.getDeclaringClass();
        FieldGen handlerFieldGen = new FieldGen(Constants.ACC_PRIVATE
                | Constants.ACC_FINAL, translate(handlerClass), Util
                .handlerFieldName(), cp);
        newStubClass.addField(handlerFieldGen.getField());


        //
        // Construct the method that gets the stub handler.
        //
        generateHandlerGetter(newStubClass, handlerFieldGen);


        //
        // Emit constructor
        //
        emitOneArgConstructor(newStubClass, handlerFieldGen);


        //
        // Construct data fields
        //
        FieldGen[] dataFieldGens = new FieldGen[methods.length];
        for (int i = 0; i < methods.length; i++) {
            MethodRef method = methods[i];


            dataFieldGens[i] = new FieldGen(Constants.ACC_PRIVATE
                    | Constants.ACC_STATIC, typeOfDataFields, Util
                    .methodFieldName(i), cp);


            newStubClass.addField(dataFieldGens[i].getField());
        }

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     * @param classGen
     * @param constantPoolGen
     */
    private static void createSslContextStaticField(ClassGen classGen, ConstantPoolGen constantPoolGen)
    {
        FieldGen fieldGen = new FieldGen(ACC_PRIVATE | ACC_STATIC,
                                         Type.getType(SSLSocketFactory.class),
                                         SSL_SOCKET_FACTORY_FIELD,
                                         constantPoolGen);
        classGen.addField(fieldGen.getField());
    }

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    public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
  translate();
    }


    private void addDOMField(ClassGenerator classGen) {
  final FieldGen fgen = new FieldGen(ACC_PUBLIC,
             Util.getJCRefType(DOM_INTF_SIG),
             DOM_FIELD,
             classGen.getConstantPool());
  classGen.addField(fgen.getField());
    }

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     * Add a static field
     */
    private void addStaticField(ClassGenerator classGen, String type,
                                String name)
    {
        final FieldGen fgen = new FieldGen(ACC_PROTECTED|ACC_STATIC,
                                           Util.getJCRefType(type),
                                           name,
                                           classGen.getConstantPool());
        classGen.addField(fgen.getField());


    }

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    public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
  translate();
    }


    private void addDOMField(ClassGenerator classGen) {
  final FieldGen fgen = new FieldGen(ACC_PUBLIC,
             Util.getJCRefType(DOM_INTF_SIG),
             DOM_FIELD,
             classGen.getConstantPool());
  classGen.addField(fgen.getField());
    }

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