private void generateFreezeSclarAndUnfreezeScalarCode(
XMethodVisitor mv,
Method method,
String objectModelProxyClassName,
Class<?> objectModelClass,
HibernateObjectModelMetadata jpaObjectModelMetadata,
boolean freeze) {
final JPAScalarProperty entityIdProperty = jpaObjectModelMetadata.getEntityIdProperty();
Label invokeImplemenationLabel = new Label();
mv.visitVarInsn(Opcodes.ILOAD, 1);
mv.visitLdcInsn(entityIdProperty.getId());
mv.visitJumpInsn(Opcodes.IF_ICMPNE, invokeImplemenationLabel);
this.generateLazyInitializer(mv, objectModelProxyClassName);
mv.visitVarInsn(Opcodes.ALOAD, 2);
mv.visitMethodInsn(
Opcodes.INVOKEINTERFACE,
ASM.getInternalName(FrozenLazyInitializer.class),
freeze ? "freezeIdentifier" : "unfreezeIdentifier",
'(' + ASM.getDescriptor(FrozenContext.class) + ")V",
true);
mv.visitInsn(Opcodes.RETURN);
mv.visitLabel(invokeImplemenationLabel);
this.generateDefaultProxyMethodCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, true);
}
private void generateSetEntityId(
XMethodVisitor mv,
Method method,
String objectModelProxyClassName,
Class<?> objectModelClass,
HibernateObjectModelMetadata jpaObjectModelMetadata) {
final JPAScalarProperty entityIdProperty = jpaObjectModelMetadata.getEntityIdProperty();
this.generateLazyInitializer(mv, objectModelProxyClassName);
mv.visitBox(
entityIdProperty.getReturnClass(),
new Action<XMethodVisitor>() {
@Override
public void run(XMethodVisitor mv) {
mv.visitVarInsn(ASM.getLoadCode(entityIdProperty.getReturnClass()), 1);
}
});
mv.visitMethodInsn(
Opcodes.INVOKEINTERFACE,
ASM.getInternalName(LazyInitializer.class),
"setIdentifier",
"(Ljava/io/Serializable;)V",
true);
mv.visitInsn(Opcodes.RETURN);
}
private void generateGetEntityId(
XMethodVisitor mv,
Method method,
String objectModelProxyClassName,
Class<?> objectModelClass,
HibernateObjectModelMetadata jpaObjectModelMetadata) {
final JPAScalarProperty entityIdProperty = jpaObjectModelMetadata.getDeclaredEntityIdProperty();
this.generateLazyInitializer(mv, objectModelProxyClassName);
mv.visitMethodInsn(
Opcodes.INVOKEINTERFACE,
ASM.getInternalName(LazyInitializer.class),
"getIdentifier",
"()Ljava/io/Serializable;",
true);
if (entityIdProperty.getReturnClass().isPrimitive()) {
mv.visitUnbox(entityIdProperty.getReturnClass(), XMethodVisitor.JVM_PRIMTIVIE_DEFAULT_VALUE);
} else {
mv.visitTypeInsn(Opcodes.CHECKCAST, ASM.getInternalName(entityIdProperty.getReturnClass()));
}
mv.visitInsn(ASM.getReturnCode(entityIdProperty.getReturnClass()));
}
private int generateProxyMethodForReferenceMode(
ClassVisitor cv,
Method method,
final String objectModelProxyClassName,
Class<?> objectModelClass,
HibernateObjectModelMetadata jpaObjectModelMetadata) {
int retval;
final JPAScalarProperty entityIdProperty = jpaObjectModelMetadata.getEntityIdProperty();
final String desc = ASM.getDescriptor(method);
XMethodVisitor mv = ASM.visitMethod(cv, Opcodes.ACC_PUBLIC, method.getName(), desc, null, null);
mv.visitCode();
if (method.getName().equals(entityIdProperty.getGetterName())
&& method.getParameterTypes().length == 0
&& method.getReturnType() == entityIdProperty.getReturnClass()) {
this.generateGetEntityId(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata);
retval = 1 << 0;
} else if (method.getName().equals(entityIdProperty.getSetterName())
&& Arrays.equals(
method.getParameterTypes(), new Class[] {entityIdProperty.getReturnClass()})
&& method.getReturnType() == void.class) {
this.generateSetEntityId(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata);
retval = 1 << 1;
} else if (method.getName().equals("getScalar")
&& Arrays.equals(method.getParameterTypes(), new Class[] {int.class})
&& method.getReturnType() == Object.class) {
Label invokeImplemenationLabel = new Label();
mv.visitVarInsn(Opcodes.ILOAD, 1);
mv.visitLdcInsn(entityIdProperty.getId());
mv.visitJumpInsn(Opcodes.IF_ICMPNE, invokeImplemenationLabel);
mv.visitBox(
entityIdProperty.getReturnClass(),
new Action<XMethodVisitor>() {
@Override
public void run(XMethodVisitor mv) {
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitMethodInsn(
Opcodes.INVOKEVIRTUAL,
objectModelProxyClassName.replace('.', '/'),
entityIdProperty.getGetterName(),
"()" + ASM.getDescriptor(entityIdProperty.getReturnClass()),
false);
}
});
mv.visitInsn(Opcodes.ARETURN);
mv.visitLabel(invokeImplemenationLabel);
this.generateDefaultProxyMethodCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, true);
retval = 1 << 2;
} else if (method.getName().equals("setScalar")
&& Arrays.equals(method.getParameterTypes(), new Class[] {int.class, Object.class})
&& method.getReturnType() == void.class) {
Label invokeImplemenationLabel = new Label();
mv.visitVarInsn(Opcodes.ILOAD, 1);
mv.visitLdcInsn(entityIdProperty.getId());
mv.visitJumpInsn(Opcodes.IF_ICMPNE, invokeImplemenationLabel);
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitVarInsn(Opcodes.ALOAD, 2);
if (entityIdProperty.getReturnClass().isPrimitive()) {
mv.visitUnbox(
entityIdProperty.getReturnClass(), XMethodVisitor.JVM_PRIMTIVIE_DEFAULT_VALUE);
} else {
mv.visitTypeInsn(Opcodes.CHECKCAST, ASM.getInternalName(entityIdProperty.getReturnClass()));
}
mv.visitMethodInsn(
Opcodes.INVOKEVIRTUAL,
objectModelProxyClassName.replace('.', '/'),
entityIdProperty.getSetterName(),
'(' + ASM.getDescriptor(entityIdProperty.getReturnClass()) + ")V",
false);
mv.visitInsn(Opcodes.RETURN);
mv.visitLabel(invokeImplemenationLabel);
this.generateDefaultProxyMethodCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, true);
retval = 1 << 3;
} else if (method.getName().equals("freezeScalar")
&& Arrays.equals(method.getParameterTypes(), new Class[] {int.class, FrozenContext.class})
&& method.getReturnType() == void.class) {
this.generateFreezeSclarAndUnfreezeScalarCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, true);
retval = 1 << 4;
} else if (method.getName().equals("unfreezeScalar")
&& Arrays.equals(method.getParameterTypes(), new Class[] {int.class, FrozenContext.class})
&& method.getReturnType() == void.class) {
this.generateFreezeSclarAndUnfreezeScalarCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, false);
retval = 1 << 5;
} else if (method.getName().equals("addScalarListener")
&& Arrays.equals(method.getParameterTypes(), new Class[] {ScalarListener.class})
&& method.getReturnType() == void.class) {
this.generateAddScalarListenerAndRemoveScalarListenerCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, true);
retval = 1 << 6;
} else if (method.getName().equals("removeScalarListener")
&& Arrays.equals(method.getParameterTypes(), new Class[] {ScalarListener.class})
&& method.getReturnType() == void.class) {
this.generateAddScalarListenerAndRemoveScalarListenerCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, false);
retval = 1 << 7;
} else {
this.generateDefaultProxyMethodCode(
mv, method, objectModelProxyClassName, objectModelClass, jpaObjectModelMetadata, true);
retval = 0;
}
mv.visitMaxs(0, 0);
mv.visitEnd();
return retval;
}
