Examples of org.objectweb.asm.FieldVisitor

org.objectweb.asm.FieldVisitor
A visitor to visit a Java field. The methods of this interface must be called in the following order: ( visitAnnotation | visitAttribute )* visitEnd. @author Eric Bruneton

    /**
     * Add the field to the class, adding the @XmlAttribute annotation for marshalling purposes.
     */
    private void createField(ClassWriter cw, String name, Class<?> type) {
        String internalType = getInternalTypeString(type);
        FieldVisitor field = cw.visitField(ACC_PRIVATE, getPropertyName(name), internalType, null, null);
        field.visitAnnotation("Ljavax/xml/bind/annotation/XmlAttribute;", true).visitEnd();
        field.visitEnd();
    }

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                                String propTypeSignature,
                                boolean isElement,
                                boolean isNillable,
                                String xmlAdapterClassSignature,
                                List<Annotation> jaxbAnnotations) {
        FieldVisitor fv;
        AnnotationVisitor av0;
        fv = cw.visitField(ACC_PROTECTED, getFieldName(propName), propClassSignature, propTypeSignature, null);


        // For Map property, we cannot have the XmlElement annotation
        if (isElement && xmlAdapterClassSignature == null) {
            av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true);
            av0.visit("name", propName);
            av0.visit("namespace", "");
            if (isNillable) {
                av0.visit("nillable", Boolean.TRUE);
            }
            // FIXME:
            // av0.visit("required", Boolean.FALSE);
            av0.visitEnd();
        }


        if (xmlAdapterClassSignature != null) {
            av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlAnyElement;", true);
            av0.visit("lax", Boolean.TRUE);
            av0.visitEnd();
            av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/adapters/XmlJavaTypeAdapter;", true);
            av0.visit("value", org.objectweb.asm.Type.getType(xmlAdapterClassSignature));
            av0.visitEnd();
        }


        for (Annotation ann : jaxbAnnotations) {
            if (ann instanceof XmlMimeType) {
                AnnotationVisitor mime = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlMimeType;", true);
                mime.visit("value", ((XmlMimeType)ann).value());
                mime.visitEnd();
            } else if (ann instanceof XmlJavaTypeAdapter) {
                AnnotationVisitor ada = fv.visitAnnotation("Ljavax/xml/bind/annotation/adapters/XmlJavaTypeAdapter;", true);
                ada.visit("value", org.objectweb.asm.Type.getType(((XmlJavaTypeAdapter)ann).value()));
                ada.visit("type", org.objectweb.asm.Type.getType(((XmlJavaTypeAdapter)ann).type()));
                ada.visitEnd();
            } else if (ann instanceof XmlAttachmentRef) {
                AnnotationVisitor att = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlAttachmentRef;", true);
                att.visitEnd();
            } else if (ann instanceof XmlList) {
                AnnotationVisitor list = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlList;", true);
                list.visitEnd();
            }
        }


        fv.visitEnd();
    }

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            CheckMethodAdapter.checkFieldSignature(signature);
        }
        if (value != null) {
            CheckMethodAdapter.checkConstant(value);
        }
        FieldVisitor av = cv.visitField(access, name, desc, signature, value);
        return new CheckFieldAdapter(av);
    }

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    /**
     * Add the field to the class, adding the @XmlAttribute annotation for marshalling purposes.
     */
    private void createField(ClassWriter cw, String name, Class<?> type) {
        String internalType = getInternalTypeString(type);
        FieldVisitor field = cw.visitField(ACC_PRIVATE, getPropertyName(name), internalType, null, null);
        field.visitAnnotation("Ljavax/xml/bind/annotation/XmlAttribute;", true).visitEnd();
        field.visitEnd();
    }

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                }
            }
        }
        String fieldName = JavaUtils.isJavaKeyword(name) ? JavaUtils.makeNonJavaKeyword(name) : name;
        
        FieldVisitor fv = cw.visitField(Opcodes.ACC_PRIVATE,
                                        fieldName, 
                                        classCode,
                                        fieldDescriptor,
                                        null);
        
        
        AnnotationVisitor av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true);
        av0.visit("name", name);
        av0.visitEnd();


        List<Annotation> jaxbAnnos = getJaxbAnnos(mpi);
        addJAXBAnnotations(fv, jaxbAnnos);
        fv.visitEnd();


        String methodName = JAXBUtils.nameToIdentifier(name, JAXBUtils.IdentifierType.GETTER);
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, methodName, "()" + classCode, 
                                          fieldDescriptor == null ? null : "()" + fieldDescriptor,
                                          null);

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    private static void addConstructor(String newClassName, ClassWriter cw,  Class<?> objectFactory) {
        
        if (objectFactory != null) {
            String ofName = "L" + periodToSlashes(objectFactory.getName()) + ";";
            FieldVisitor fv = cw.visitField(0, "factory",
                                            ofName,
                                            null, null);
            fv.visitEnd();
        }
        
        MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        Label l0 = new Label();

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        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, implClassName, null, beanClassName, new String[0]);


        // if we have an unknown pk, we need to add a field for the pk
        if (unknownPk) {
            // public Long OpenEJB_pk;
            FieldVisitor fv = cw.visitField(ACC_PUBLIC, "OpenEJB_pk", "Ljava/lang/Long;", null, null);
            fv.visitEnd();
        }


        createConstructor();


        cw.visitEnd();

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    public byte[] generate() {
        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, implClassName, null, beanClassName, new String[]{"org/apache/openejb/core/cmp/cmp2/Cmp2Entity"});


        // public static Object deploymentInfo;
        {
            FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, "deploymentInfo", "Ljava/lang/Object;", null, null);
            fv.visitEnd();
        }


        // private transient boolean deleted;
        {
            FieldVisitor fv = cw.visitField(ACC_PRIVATE + ACC_TRANSIENT, "deleted", "Z", null, null);
            fv.visitEnd();
        }


        if (Object.class.equals(primKeyClass)) {
            FieldVisitor fv = cw.visitField(ACC_PRIVATE, UNKNOWN_PK_NAME, UNKNOWN_PK_TYPE.getDescriptor(), null, null);
            fv.visitEnd();
        }


        // private ${cmpField.type} ${cmpField.name};
        for (CmpField cmpField : cmpFields.values()) {
            createField(cmpField);

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        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void createField(CmpField cmpField) {
        FieldVisitor fv = cw.visitField(ACC_PRIVATE,
                cmpField.getName(),
                cmpField.getDescriptor(),
                null,
                null);
        fv.visitEnd();
    }

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        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void createCmrFields(CmrField cmrField) {
        FieldVisitor fv = cw.visitField(ACC_PRIVATE,
                cmrField.getName(),
                cmrField.getDescriptor(),
                cmrField.getGenericSignature(),
                null);
        fv.visitEnd();


        fv = cw.visitField(ACC_PRIVATE + ACC_TRANSIENT,
                cmrField.getName() + "Cmr",
                cmrField.getAccessorDescriptor(),
                cmrField.getAccessorGenericSignature(),
                null);
        fv.visitEnd();
    }

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