Examples of org.apache.tapestry5.ioc.services.ClassFab.addMethod()

Package org.apache.tapestry5.ioc.services

Class org.apache.tapestry5.ioc.services.ClassFab

Examples of org.apache.tapestry5.ioc.services.ClassFab.addMethod()

org.apache.tapestry5.ioc.services.ClassFab.addMethod()
Adds a method. The method is a public instance method. @param modifiers Modifiers for the method (see {@link java.lang.reflect.Modifier}). @param signature defines the name, return type, parameters and exceptions thrown @param body The body of the method. @throws RuntimeException if a method with that signature has already been added, or if there is a Javassist compilation error

            String accessClassName = String.format("%s$MethodAccess_%s_%s", getClassName(), sig.getMethodName(),
                    ClassFabUtils.nextUID());


            ClassFab cf = classFactory.newClass(accessClassName, AbstractMethodAccess.class);


            cf.addMethod(Modifier.PUBLIC, INVOKE_SIGNATURE, body);


            cf.addToString(String.format("MethodAccess[method %s of class %s]", sig.getMediumDescription(),
                    getClassName()));


            Class accessClass = cf.createClass();

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        { ComponentModel.class, String.class, Object[].class }, null, "super($1, $2, $3);");


        // Pass $1 (the InternalComponentResources object) and the constructorArgs (from the AbstractIntantiator
        // base class) into the new component instance's constructor


        cf.addMethod(Modifier.PUBLIC, NEW_INSTANCE_SIGNATURE,
                String.format("return new %s($1, constructorArgs);", componentClassName));


        Class instantiatorClass = cf.createClass();


        try

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        cf.addField("_stringValue", String.class);
        cf.addConstructor(new Class[] { String.class }, null, "{ _stringValue = $1; }");


        MethodSignature getStringValue = new MethodSignature(String.class, "getStringValue", null, null);


        cf.addMethod(Modifier.PUBLIC, getStringValue, "return _stringValue;");


        Class targetClass = cf.createClass();


        try
        {

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        ClassFab cf = newClassFab("MyIntHolder", AbstractIntWrapper.class);


        cf.addField("_intValue", int.class);
        cf.addConstructor(new Class[] { int.class }, null, "{ _intValue = $1; }");


        cf.addMethod(Modifier.PUBLIC, new MethodSignature(int.class, "getIntValue", null, null), "return _intValue;");


        Class targetClass = cf.createClass();
        Constructor c = targetClass.getConstructors()[0];


        AbstractIntWrapper targetBean = (AbstractIntWrapper) c.newInstance(new Object[] { new Integer(137) });

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    {
        ClassFab cf = newClassFab("SimpleService", Object.class);


        cf.addInterface(SimpleService.class);


        cf.addMethod(Modifier.PUBLIC, new MethodSignature(int.class, "add", new Class[] { int.class, int.class }, null),
                     "return $1 + $2;");


        Class targetClass = cf.createClass();


        SimpleService s = (SimpleService) targetClass.newInstance();

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        cf.addInterface(Runnable.class);


        try
        {
            cf.addMethod(Modifier.PUBLIC, new MethodSignature(void.class, "run", null, null), "fail;");
        }
        catch (RuntimeException ex)
        {
            assertExceptionSubstring(ex, "Unable to add method void run() to class BadMethodBody:");
        }

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    @Test
    public void add_duplicate_method_signature() throws Exception
    {
        ClassFab cf = newClassFab("DupeMethodAdd", Object.class);


        cf.addMethod(Modifier.PUBLIC, new MethodSignature(void.class, "foo", null, null), "{}");


        try
        {
            cf.addMethod(Modifier.PUBLIC, new MethodSignature(void.class, "foo", null, null), "{}");
            unreachable();

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        cf.addMethod(Modifier.PUBLIC, new MethodSignature(void.class, "foo", null, null), "{}");


        try
        {
            cf.addMethod(Modifier.PUBLIC, new MethodSignature(void.class, "foo", null, null), "{}");
            unreachable();
        }
        catch (RuntimeException ex)
        {
            assertEquals("Attempt to redefine method void foo() of class DupeMethodAdd.", ex

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        MethodSignature sig = new MethodSignature(Map.class, "doTheNasty", new Class[] { int.class, String.class },
                                                  new Class[] { InstantiationException.class,
                                                          IllegalAccessException.class });


        cf.addMethod(Modifier.PUBLIC + Modifier.FINAL + Modifier.SYNCHRONIZED, sig, "{ return _map; }");


        String toString = cf.toString();


        assertContains(toString,
                       "public class FredRunnable extends " + BaseLocatable.class.getName() + "\n" + "  implements java.lang.Runnable, java.io.Serializable");

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        cf.addField("_stringValue", String.class);


        MethodSignature setStringValue = new MethodSignature(void.class, "setStringValue", new Class[] { String.class },
                                                             null);


        cf.addMethod(Modifier.PUBLIC, setStringValue, "_stringValue = $1;");


        MethodSignature getStringValue = new MethodSignature(String.class, "getStringValue", null, null);


        cf.addMethod(Modifier.PUBLIC, getStringValue, "return _stringValue;");

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