Examples of org.springframework.binding.expression.Expression

Package org.springframework.binding.expression

Examples of org.springframework.binding.expression.Expression

org.springframework.binding.expression.Expression
An expression capable of evaluating itself against context objects. Encapsulates the details of a previously parsed expression string. Provides a common abstraction for expression evaluation independent of any language like OGNL or the Unified EL. @author Keith Donald

    TestBean target = new TestBean();
    assertEquals("foo2", exp.getValue(target));
  }


  public void testVariablesWithCoersion() {
    Expression exp = parser.parseExpression("max", new FluentParserContext().variable(new ExpressionVariable("max",
        "maximum", new FluentParserContext().expectResult(Long.class))));
    TestBean target = new TestBean();
    assertEquals(new Long(2), exp.getValue(target));
  }

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    assertEquals(new Long(2), exp.getValue(target));
  }


  public void testTemplateNestedVariables() {
    String expressionString = "#{value}#{max}";
    Expression exp = parser.parseExpression(expressionString, new FluentParserContext().template().variable(
        new ExpressionVariable("max", "#{maximum}#{var}", new FluentParserContext().template().variable(
            new ExpressionVariable("var", "'bar'")))));
    TestBean target = new TestBean();
    assertEquals("foo2bar", exp.getValue(target));
  }

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  // assertEquals(null, e.getValueType(target));
  // }


  public void testGetExpressionString() {
    String expressionString = "maximum";
    Expression exp = parser.parseExpression(expressionString, null);
    assertEquals("maximum", exp.getExpressionString());
  }

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    assertEquals("maximum", exp.getExpressionString());
  }


  public void testGetExpressionType() {
    String expressionString = "maximum";
    Expression exp = parser.parseExpression(expressionString, null);
    TestBean context = new TestBean();
    assertEquals(int.class, exp.getValueType(context));
  }

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    assertEquals(int.class, exp.getValueType(context));
  }


  public void testGetValueWithCoersion() {
    String expressionString = "maximum";
    Expression exp = parser.parseExpression(expressionString, new FluentParserContext().expectResult(String.class));
    TestBean context = new TestBean();
    assertEquals("2", exp.getValue(context));
  }

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    assertEquals("2", exp.getValue(context));
  }


  public void testGetValueCoersionError() {
    String expressionString = "maximum";
    Expression exp = parser.parseExpression(expressionString, new FluentParserContext()
        .expectResult(TestBean.class));
    TestBean context = new TestBean();
    try {
      exp.getValue(context);
      fail("Should have failed with coersion");
    } catch (ValueCoercionException e) {
    }
  }

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    }
  }


  public void testSetValue() {
    String expressionString = "maximum";
    Expression exp = parser.parseExpression(expressionString, null);
    TestBean context = new TestBean();
    exp.setValue(context, new Integer(5));
    assertEquals(5, context.getMaximum());
  }

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    assertEquals(5, context.getMaximum());
  }


  public void testSetValueWithTypeCoersion() {
    String expressionString = "maximum";
    Expression exp = parser.parseExpression(expressionString, null);
    TestBean context = new TestBean();
    exp.setValue(context, "5");
    assertEquals(5, context.getMaximum());
  }

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    assertEquals(5, context.getMaximum());
  }


  public void testSetValueCoersionError() {
    String expressionString = "maximum";
    Expression exp = parser.parseExpression(expressionString, null);
    TestBean context = new TestBean();
    try {
      exp.setValue(context, "bogus");
      fail("Should have failed with coersion");
    } catch (ValueCoercionException e) {
    }
  }

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  }


  public void testStartWithMapper() {
    DefaultMapper attributeMapper = new DefaultMapper();
    ExpressionParser parser = DefaultExpressionParserFactory.getExpressionParser();
    Expression x = parser.parseExpression("attr", new FluentParserContext().evaluate(AttributeMap.class));
    Expression y = parser.parseExpression("flowScope.attr", new FluentParserContext()
        .evaluate(RequestContext.class));
    attributeMapper.addMapping(new DefaultMapping(x, y));
    flow.setInputMapper(attributeMapper);
    MockRequestControlContext context = new MockRequestControlContext(flow);
    LocalAttributeMap sessionInput = new LocalAttributeMap();

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Related Classes of org.springframework.binding.expression.Expression

org.springframework.binding.expression.beanwrapper.BeanWrapperExpressionParserTests

org.springframework.binding.expression.el.ELExpressionParserTests

org.springframework.binding.expression.ognl.OgnlExpression

org.springframework.binding.expression.ognl.OgnlExpressionParserTests

org.springframework.binding.expression.spel.ELExpressionParserCompatibilityTests

org.springframework.faces.webflow.FlowActionListener

org.springframework.faces.webflow.JsfManagedBeanAwareELExpressionParserTests

org.springframework.webflow.action.FlowDefinitionRedirectActionTests

org.springframework.webflow.action.RenderAction

org.springframework.webflow.engine.builder.model.FlowModelFlowBuilder

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