groovy.lang.DelegatingMetaClass Maven / Gradle / Ivy
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/*
* Copyright 2003-2009 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package groovy.lang;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.runtime.InvokerHelper;
import java.lang.reflect.Method;
import java.util.List;
/**
* @author John Wilson
*/
public class DelegatingMetaClass implements MetaClass, MutableMetaClass, GroovyObject {
protected MetaClass delegate;
public DelegatingMetaClass(final MetaClass delegate) {
this.delegate = delegate;
}
public DelegatingMetaClass(final Class theClass) {
this(GroovySystem.getMetaClassRegistry().getMetaClass(theClass));
}
public boolean isModified() {
return this.delegate instanceof MutableMetaClass && ((MutableMetaClass) this.delegate).isModified();
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#addNewInstanceMethod(java.lang.reflect.Method)
*/
public void addNewInstanceMethod(Method method) {
if (delegate instanceof MutableMetaClass)
((MutableMetaClass) delegate).addNewInstanceMethod(method);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#addNewStaticMethod(java.lang.reflect.Method)
*/
public void addNewStaticMethod(Method method) {
if (delegate instanceof MutableMetaClass)
((MutableMetaClass) delegate).addNewStaticMethod(method);
}
public void addMetaMethod(MetaMethod metaMethod) {
if (delegate instanceof MutableMetaClass)
((MutableMetaClass) delegate).addMetaMethod(metaMethod);
}
public void addMetaBeanProperty(MetaBeanProperty metaBeanProperty) {
if (delegate instanceof MutableMetaClass)
((MutableMetaClass) delegate).addMetaBeanProperty(metaBeanProperty);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#initialize()
*/
public void initialize() {
delegate.initialize();
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#getAttribute(java.lang.Object, java.lang.String)
*/
public Object getAttribute(Object object, String attribute) {
return delegate.getAttribute(object, attribute);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#getClassNode()
*/
public ClassNode getClassNode() {
return delegate.getClassNode();
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#getMetaMethods()
*/
public List getMetaMethods() {
return delegate.getMetaMethods();
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#getMethods()
*/
public List getMethods() {
return delegate.getMethods();
}
public List respondsTo(Object obj, String name, Object[] argTypes) {
return delegate.respondsTo(obj, name, argTypes);
}
public List respondsTo(Object obj, String name) {
return delegate.respondsTo(obj, name);
}
public MetaProperty hasProperty(Object obj, String name) {
return delegate.hasProperty(obj, name);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#getProperties()
*/
public List getProperties() {
return delegate.getProperties();
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#getProperty(java.lang.Object, java.lang.String)
*/
public Object getProperty(Object object, String property) {
return delegate.getProperty(object, property);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#invokeConstructor(java.lang.Object[])
*/
public Object invokeConstructor(Object[] arguments) {
return delegate.invokeConstructor(arguments);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#invokeMethod(java.lang.Object, java.lang.String, java.lang.Object)
*/
public Object invokeMethod(Object object, String methodName, Object arguments) {
return delegate.invokeMethod(object, methodName, arguments);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#invokeMethod(java.lang.Object, java.lang.String, java.lang.Object[])
*/
public Object invokeMethod(Object object, String methodName, Object[] arguments) {
return delegate.invokeMethod(object, methodName, arguments);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#invokeStaticMethod(java.lang.Object, java.lang.String, java.lang.Object[])
*/
public Object invokeStaticMethod(Object object, String methodName, Object[] arguments) {
return delegate.invokeStaticMethod(object, methodName, arguments);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#setAttribute(java.lang.Object, java.lang.String, java.lang.Object)
*/
public void setAttribute(Object object, String attribute, Object newValue) {
delegate.setAttribute(object, attribute, newValue);
}
/* (non-Javadoc)
* @see groovy.lang.MetaClass#setProperty(java.lang.Object, java.lang.String, java.lang.Object)
*/
public void setProperty(Object object, String property, Object newValue) {
delegate.setProperty(object, property, newValue);
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object obj) {
return delegate.equals(obj);
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return delegate.hashCode();
}
public String toString() {
return super.toString() + "[" + delegate.toString() + "]";
}
/**
* @deprecated
*/
public MetaMethod pickMethod(String methodName, Class[] arguments) {
return delegate.pickMethod(methodName, arguments);
}
public Object getAttribute(Class sender, Object receiver, String messageName, boolean useSuper) {
return this.delegate.getAttribute(sender, receiver, messageName, useSuper);
}
public Object getProperty(Class sender, Object receiver, String messageName, boolean useSuper, boolean fromInsideClass) {
return this.delegate.getProperty(sender, receiver, messageName, useSuper, fromInsideClass);
}
public MetaProperty getMetaProperty(String name) {
return this.delegate.getMetaProperty(name);
}
public MetaMethod getStaticMetaMethod(String name, Object[] args) {
return this.delegate.getStaticMetaMethod(name, args);
}
public MetaMethod getStaticMetaMethod(String name, Class[] argTypes) {
return this.delegate.getStaticMetaMethod(name, argTypes);
}
public MetaMethod getMetaMethod(String name, Object[] args) {
return this.delegate.getMetaMethod(name, args);
}
public Class getTheClass() {
return this.delegate.getTheClass();
}
public Object invokeMethod(Class sender, Object receiver, String methodName, Object[] arguments, boolean isCallToSuper, boolean fromInsideClass) {
return this.delegate.invokeMethod(sender, receiver, methodName, arguments, isCallToSuper, fromInsideClass);
}
public Object invokeMissingMethod(Object instance, String methodName, Object[] arguments) {
return this.delegate.invokeMissingMethod(instance, methodName, arguments);
}
public Object invokeMissingProperty(Object instance, String propertyName, Object optionalValue, boolean isGetter) {
return this.delegate.invokeMissingProperty(instance, propertyName, optionalValue, isGetter);
}
public boolean isGroovyObject() {
return GroovyObject.class.isAssignableFrom(this.delegate.getTheClass());
}
public void setAttribute(Class sender, Object receiver, String messageName, Object messageValue, boolean useSuper, boolean fromInsideClass) {
this.delegate.setAttribute(sender, receiver, messageName, messageValue, useSuper, fromInsideClass);
}
public void setProperty(Class sender, Object receiver, String messageName, Object messageValue, boolean useSuper, boolean fromInsideClass) {
this.delegate.setProperty(sender, receiver, messageName, messageValue, useSuper, fromInsideClass);
}
public int selectConstructorAndTransformArguments(int numberOfConstructors, Object[] arguments) {
return this.delegate.selectConstructorAndTransformArguments(numberOfConstructors, arguments);
}
public void setAdaptee(MetaClass adaptee) {
this.delegate = adaptee;
}
public MetaClass getAdaptee() {
return this.delegate;
}
public Object invokeMethod(String name, Object args) {
try {
return getMetaClass().invokeMethod(this, name, args);
}
catch (MissingMethodException e) {
if (delegate instanceof GroovyObject)
return ((GroovyObject) delegate).invokeMethod(name, args);
else
throw e;
}
}
public Object getProperty(String property) {
try {
return getMetaClass().getProperty(this, property);
}
catch (MissingPropertyException e) {
if (delegate instanceof GroovyObject)
return ((GroovyObject) delegate).getProperty(property);
else
throw e;
}
}
public void setProperty(String property, Object newValue) {
try {
getMetaClass().setProperty(this, property, newValue);
}
catch (MissingPropertyException e) {
if (delegate instanceof GroovyObject)
((GroovyObject) delegate).setProperty(property, newValue);
else
throw e;
}
}
public MetaClass getMetaClass() {
return InvokerHelper.getMetaClass(getClass());
}
public void setMetaClass(MetaClass metaClass) {
throw new UnsupportedOperationException();
}
}