Examples of java.beans.DefaultPersistenceDelegate

java.beans.DefaultPersistenceDelegate
The DefaultPersistenceDelegate is a concrete implementation of the abstract PersistenceDelegate class and is the delegate used by default for classes about which no information is available. The DefaultPersistenceDelegate provides, version resilient, public API-based persistence for classes that follow the JavaBeans conventions without any class specific configuration.
The key assumptions are that the class has a nullary constructor and that its state is accurately represented by matching pairs of "setter" and "getter" methods in the order they are returned by the Introspector. In addition to providing code-free persistence for JavaBeans, the DefaultPersistenceDelegate provides a convenient means to effect persistent storage for classes that have a constructor that, while not nullary, simply requires some property values as arguments. @see #DefaultPersistenceDelegate(String[]) @see java.beans.Introspector @since 1.4 @version 1.22 05/16/08 @author Philip Milne

    /*
     * Test the method getValue() with a protected method but within java.beans
     * package.
     */
    public void testGetValue_ProtectedMethodWithPackage() throws Exception {
        DefaultPersistenceDelegate dpd = new DefaultPersistenceDelegate();
        Object[] arguments = new Object[] { "test", "test" };
        Expression t = new Expression(dpd, "mutatesTo", arguments);
        try {
            t.getValue();
            fail("Should throw NoSuchMethodException!");

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    /*
     * Test the method execute() with a protected method but within java.beans
     * package.
     */
    public void testExecute_ProtectedMethodWithPackage() throws Exception {
        DefaultPersistenceDelegate dpd = new DefaultPersistenceDelegate();
        Object[] arguments = new Object[] { "test", "test" };
        Statement t = new Statement(dpd, "mutatesTo", arguments);
        try {
            t.execute();
            fail("Should throw NoSuchMethodException!");

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        });


        try {
            final Object object = new Object();
            e.setPersistenceDelegate(AType.class,
                    new DefaultPersistenceDelegate() {
                        @SuppressWarnings("unchecked")
                        @Override
                        protected void initialize(Class type,
                                Object oldInstance, Object newInstance,
                                Encoder out) {

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    /*
     * Test the default constructor.
     */
    public void testConstructor_Default() {
        new DefaultPersistenceDelegate();
    }

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    /*
     * Test the constructor with normal property names.
     */
    public void testConstructor_StringArray_Normal() {
        new DefaultPersistenceDelegate(new String[] { "prop1", "", null });
    }

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    /*
     * Test the constructor with an empty string array.
     */
    public void testConstructor_StringArray_Empty() {
        new DefaultPersistenceDelegate(new String[0]);
    }

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    /*
     * Test the constructor with null.
     */
    public void testConstructor_StringArray_Null() {
        new DefaultPersistenceDelegate(null);
    }

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                    ancestor = ancestor.getSuperclass();
                }
            }


            if (pd == null) {
                pd = new DefaultPersistenceDelegate();
            }
        }
        return pd;
    }

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        });


        try {
            final Object object = new Object();
            e.setPersistenceDelegate(AType.class,
                    new DefaultPersistenceDelegate() {
                        @SuppressWarnings("unchecked")
                        @Override
                        protected void initialize(Class type,
                                Object oldInstance, Object newInstance,
                                Encoder out) {

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    /*
     * Test the method execute() with a protected method but within java.beans
     * package.
     */
    public void testExecute_ProtectedMethodWithPackage() throws Exception {
        DefaultPersistenceDelegate dpd = new DefaultPersistenceDelegate();
        Object[] arguments = new Object[] { "test", "test" };
        Statement t = new Statement(dpd, "mutatesTo", arguments);
        try {
            t.execute();
            fail("Should throw NoSuchMethodException!");

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