Examples of ClassFab

org.apache.hivemind.service.ClassFab
.org/products/javassist">Javassist home page.
Method bodies look largely like Java. References to java classes must be fully qualified. Several special variables are used:
- $0 first parameter, equivalent to this in Java code (and can't be used when creating a static method)
- $1, $2, ... actual parameters to the method
- $args all the parameters as an Object[]
- $r the return type of the method, typically used as return ($r) .... $r is valid with method that return void. This also handles conversions between wrapper types and primitive types.
- $w conversion from primitive type to wrapper type, used as ($w) foo() where foo() returns a primitive type and a wrapper type is needed
@author Howard Lewis Ship
org.apache.tapestry.ioc.services.ClassFab
.org/products/javassist">Javassist home page.
Method bodies look largely like Java. References to java classes must be fully qualified. Several special variables are used:
- $0 first parameter, equivalent to this in Java code (and can't be used when creating a static method)
- $1, $2, ... actual parameters to the method
- $args all the parameters as an Object[]
- $r the return type of the method, typically used as return ($r) .... $r is valid with method that return void. This also handles conversions between wrapper types and primitive types.
- $w conversion from primitive type to wrapper type, used as ($w) foo() where foo() returns a primitive type and a wrapper type is needed
ClassFab instances are not thread safe.
ClassFab instances are created by a {@link org.apache.tapestry.ioc.services.ClassFactory}.
org.apache.tapestry5.ioc.services.ClassFab
.org/products/javassist">Javassist home page.
Method bodies look largely like Java. References to java classes must be fully qualified. Several special variables are used:
- $0 first parameter, equivalent to this in Java code (and can't be used when creating a static method)
- $1, $2, ... actual parameters to the method
- $args all the parameters as an Object[]
- $r the return type of the method, typically used as return ($r) .... $r is valid with method that return void. This also handles conversions between wrapper types and primitive types.
- $w conversion from primitive type to wrapper type, used as ($w) foo() where foo() returns a primitive type and a wrapper type is needed
ClassFab instances are not thread safe.
ClassFab instances are created by a {@link org.apache.tapestry5.ioc.services.ClassFactory}. @deprecated In 5.3, use {@link PlasticProxyFactory} instead

Examples of org.apache.hivemind.service.ClassFab

        }
    }


    public void testInPackage() throws Exception
    {
        ClassFab cf = newClassFab("org.apache.hivemind.InPackage", Object.class);


        Class c = cf.createClass();


        Object o = c.newInstance();


        assertEquals("org.apache.hivemind.InPackage", o.getClass().getName());
    }

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Examples of org.apache.hivemind.service.ClassFab

        assertEquals("org.apache.hivemind.InPackage", o.getClass().getName());
    }


    public void testBadMethodBody() throws Exception
    {
        ClassFab cf = newClassFab("BadMethodBody", Object.class);


        cf.addInterface(Runnable.class);


        try
        {
            cf.addMethod(
                Modifier.PUBLIC,
                new MethodSignature(void.class, "run", null, null),
                "fail;");
        }
        catch (ApplicationRuntimeException ex)

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Examples of org.apache.hivemind.service.ClassFab

        }
    }


    public void testGetMethodFab() throws Exception
    {
        ClassFab cf = newClassFab("GetMethodFab", Object.class);


        MethodSignature s = new MethodSignature(void.class, "run", null, null);
        MethodFab mf = cf.addMethod(Modifier.PUBLIC, s, null);


        assertSame(mf, cf.getMethodFab(s));


        assertNull(cf.getMethodFab(new MethodSignature(void.class, "skip", null, null)));
    }

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Examples of org.apache.hivemind.service.ClassFab

        assertNull(cf.getMethodFab(new MethodSignature(void.class, "skip", null, null)));
    }


    public void testExtendMethod() throws Exception
    {
        ClassFab cf = newClassFab("ExtendMethod", Object.class);


        MethodFab mf =
            cf.addMethod(
                Modifier.PUBLIC,
                new MethodSignature(int.class, "getValue", null, null),
                "return 1;");


        mf.extend("return 2 * $_;", false);


        Object bean = cf.createClass().newInstance();


        assertEquals(new Integer(2), PropertyUtils.read(bean, "value"));
    }

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Examples of org.apache.hivemind.service.ClassFab

        assertEquals(new Integer(2), PropertyUtils.read(bean, "value"));
    }


    public void testExtendMethodAlterReturn() throws Exception
    {
        ClassFab cf = newClassFab("ExtendMethodAlterReturn", Object.class);


        MethodFab mf =
            cf.addMethod(
                Modifier.PUBLIC,
                new MethodSignature(int.class, "getValue", null, null),
                "return 2;");


        mf.extend("$_ = 3 * $_;", false);


        Object bean = cf.createClass().newInstance();


        assertEquals(new Integer(6), PropertyUtils.read(bean, "value"));
    }

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Examples of org.apache.hivemind.service.ClassFab

        assertEquals(new Integer(6), PropertyUtils.read(bean, "value"));
    }


    public void testExtendMethodFailure() throws Exception
    {
        ClassFab cf = newClassFab("ExtendMethodFailure", Object.class);


        MethodFab mf =
            cf.addMethod(
                Modifier.PUBLIC,
                new MethodSignature(int.class, "getValue", null, null),
                "return 1;");


        try

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Examples of org.apache.hivemind.service.ClassFab

        }
    }


    public void testDupeMethodAdd() 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();
        }
        catch (ApplicationRuntimeException ex)
        {
            assertEquals(

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Examples of org.apache.hivemind.service.ClassFab

        }
    }


    public void testBadConstructor() throws Exception
    {
        ClassFab cf = newClassFab("BadConstructor", Object.class);


        try
        {
            cf.addConstructor(null, null, " woops!");
        }
        catch (ApplicationRuntimeException ex)
        {
            assertExceptionSubstring(ex, "Unable to add constructor to class BadConstructor");
        }

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Examples of org.apache.hivemind.service.ClassFab


    }


    public void testCatchException() throws Exception
    {
        ClassFab cf = newClassFab("Fail", Object.class);


        cf.addInterface(FailService.class);


        MethodFab mf =
            cf.addMethod(
                Modifier.PUBLIC,
                new MethodSignature(void.class, "fail", null, null),
                "throw new java.lang.RuntimeException(\"Ouch!\");");


        mf.addCatch(RuntimeException.class, "throw new java.io.IOException($e.getMessage());");


        Class targetClass = cf.createClass();


        FailService fs = (FailService) targetClass.newInstance();


        try
        {

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Examples of org.apache.hivemind.service.ClassFab

        }
    }


    public void testBadCatch() throws Exception
    {
        ClassFab cf = newClassFab("BadCatch", Object.class);


        cf.addInterface(Runnable.class);


        MethodFab mf =
            cf.addMethod(
                Modifier.PUBLIC,
                new MethodSignature(void.class, "run", null, null),
                "return;");


        try

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