Examples of org.codehaus.groovy.runtime.metaclass.NewInstanceMetaMethod

Package org.codehaus.groovy.runtime.metaclass

Examples of org.codehaus.groovy.runtime.metaclass.NewInstanceMetaMethod

org.codehaus.groovy.runtime.metaclass.NewInstanceMetaMethod
A MetaMethod implementation where the underlying method is really a static helper method on some class but it appears to be an instance method on a class. This implementation is used to add new methods to the JDK writing them as normal static methods with the first parameter being the class on which the method is added. @author James Strachan @version $Revision: 8959 $


    public void testInvokeMetaMethod() throws Exception {
        Method method = getClass().getMethod("dummyMethod", new Class[]{String.class, String.class});
        assertTrue("Should have found a method", method != null);


        NewInstanceMetaMethod metaMethod = createNewMetaMethod(method);


        Object answer = metaMethod.invoke("abc", new Object[]{"xyz"});
        assertEquals("def", answer);


        assertTrue("Should not appear as static method", !metaMethod.isStatic());
    }

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    public void testInvokeDefaultGroovyMethod() throws Exception {
        Method method = DefaultGroovyMethods.class.getMethod("plus", new Class[]{String.class, Object.class});
        assertTrue("Should have found a method", method != null);


        NewInstanceMetaMethod metaMethod = createNewMetaMethod(method);


        Object answer = metaMethod.invoke("abc", new Object[]{"123"});
        assertEquals("abc123", answer);


        System.out.println("Found: " + answer);
    }

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        assertEquals("xyz", bar);
        return "def";
    }


    protected NewInstanceMetaMethod createNewMetaMethod(Method method) {
        return new NewInstanceMetaMethod(CachedMethod.find(method));
    }

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     *
     * @param method The method to be added
     */
    public void addNewInstanceMethod(Method method) {
        final CachedMethod cachedMethod = CachedMethod.find(method);
        NewInstanceMetaMethod newMethod = new NewInstanceMetaMethod(cachedMethod);
        final CachedClass declaringClass = newMethod.getDeclaringClass();
        addNewInstanceMethodToIndex(newMethod, metaMethodIndex.getHeader(declaringClass.getTheClass()));
    }

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        return false;  // MetaClassImpl not designed for modification, just return false
    }


    public void addNewInstanceMethod(Method method) {
        final CachedMethod cachedMethod = CachedMethod.find(method);
        NewInstanceMetaMethod newMethod = new NewInstanceMetaMethod(cachedMethod);
        final CachedClass declaringClass = newMethod.getDeclaringClass();
        addNewInstanceMethodToIndex(newMethod, metaMethodIndex.getHeader(declaringClass.getTheClass()));
    }

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org.codehaus.groovy.runtime.NewStaticMetaMethodTest

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