Examples with VariableResolverFactory org.mvel2.integration.VariableResolverFactory used on opensource projects

Example 21 with VariableResolverFactory

use of org.mvel2.integration.VariableResolverFactory in project mvel by mikebrock.

the class PreFixIncNode method getReducedValueAccelerated.

public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
    VariableResolver vResolver = factory.getVariableResolver(name);
    vResolver.setValue(ctx = MathProcessor.doOperations(vResolver.getValue(), Operator.ADD, DataTypes.INTEGER, 1));
    return ctx;
}

Example 22 with VariableResolverFactory

use of org.mvel2.integration.VariableResolverFactory in project mvel by mikebrock.

the class PropertyHandlerTests method testNullPropertyHandler2.

public void testNullPropertyHandler2() {
    MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
    OptimizerFactory.setDefaultOptimizer("reflective");
    PropertyHandlerFactory.setNullPropertyHandler(new PropertyHandler() {

        public Object getProperty(String name, Object contextObj, VariableResolverFactory variableFactory) {
            return "NULL";
        }

        public Object setProperty(String name, Object contextObj, VariableResolverFactory variableFactory, Object value) {
            return "NULL";
        }
    });
    Foo foo = new Foo();
    Bar bar = foo.getBar();
    foo.setBar(null);
    Map map = new HashMap();
    map.put("foo", foo);
    Serializable s = MVEL.compileExpression("foo.bar");
    assertEquals("NULL", MVEL.executeExpression(s, map));
    assertEquals("NULL", MVEL.executeExpression(s, map));
    foo.setBar(bar);
    assertEquals(bar, MVEL.executeExpression(s, map));
}

Example 23 with VariableResolverFactory

use of org.mvel2.integration.VariableResolverFactory in project mvel by mikebrock.

the class PropertyHandlerTests method _testListener.

public void _testListener() {
    MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
    class MyListener implements Listener {

        public int count;

        public void onEvent(Object context, String contextName, VariableResolverFactory variableFactory, Object value) {
            count++;
        }
    }
    MyListener listener = new MyListener();
    GlobalListenerFactory.registerGetListener(listener);
    PropertyHandlerFactory.setNullPropertyHandler(new PropertyHandler() {

        public Object getProperty(String name, Object contextObj, VariableResolverFactory variableFactory) {
            List someList = new ArrayList();
            someList.add(new Foo());
            return someList;
        }

        public Object setProperty(String name, Object contextObj, VariableResolverFactory variableFactory, Object value) {
            return null;
        }
    });
    PropertyHandlerFactory.registerPropertyHandler(List.class, new PropertyHandler() {

        public Object getProperty(String name, Object contextObj, VariableResolverFactory variableFactory) {
            List list = (List) contextObj;
            int index = Integer.valueOf(name);
            while (index >= list.size()) {
                list.add(new Foo());
            }
            return list.get(index);
        }

        public Object setProperty(String name, Object contextObj, VariableResolverFactory variableFactory, Object value) {
            return null;
        }
    });
    Foo foo = new Foo();
    final Serializable fooExpr0 = MVEL.compileSetExpression("collectionTest[0].name");
    final Serializable fooExpr1 = MVEL.compileSetExpression("collectionTest[1].name");
    MVEL.executeSetExpression(fooExpr0, foo, "John Galt");
    MVEL.executeSetExpression(fooExpr1, foo, "The Joker");
    assertEquals(2, listener.count);
    MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = false;
}

Example 24 with VariableResolverFactory

use of org.mvel2.integration.VariableResolverFactory in project mvel by mikebrock.

the class PropertyHandlerTests method testListPropertyHandler4.

public void testListPropertyHandler4() {
    MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
    OptimizerFactory.setDefaultOptimizer("ASM");
    final String[] res = new String[1];
    GlobalListenerFactory.registerGetListener(new Listener() {

        public void onEvent(Object context, String contextName, VariableResolverFactory variableFactory, Object value) {
            System.out.println("Listener Fired:" + contextName);
            res[0] = contextName;
        }
    });
    Serializable s = MVEL.compileSetExpression("list[0]");
    Base b;
    MVEL.executeSetExpression(s, new Base(), "hey you");
    res[0] = null;
    MVEL.executeSetExpression(s, b = new Base(), "hey you");
    assertEquals("set", b.list.get(0));
    assertEquals("list", res[0]);
}

Example 25 with VariableResolverFactory

use of org.mvel2.integration.VariableResolverFactory in project mvel by mikebrock.

the class PropertyHandlerTests method testNullPropertyHandler.

public void testNullPropertyHandler() {
    MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
    OptimizerFactory.setDefaultOptimizer("ASM");
    PropertyHandlerFactory.setNullPropertyHandler(new PropertyHandler() {

        public Object getProperty(String name, Object contextObj, VariableResolverFactory variableFactory) {
            return "NULL";
        }

        public Object setProperty(String name, Object contextObj, VariableResolverFactory variableFactory, Object value) {
            return "NULL";
        }
    });
    Foo foo = new Foo();
    Bar bar = foo.getBar();
    foo.setBar(null);
    Map map = new HashMap();
    map.put("foo", foo);
    Serializable s = MVEL.compileExpression("foo.bar");
    assertEquals("NULL", MVEL.executeExpression(s, map));
    assertEquals("NULL", MVEL.executeExpression(s, map));
    foo.setBar(bar);
    assertEquals(bar, MVEL.executeExpression(s, map));
}