Examples with EvaluationContext org.springframework.expression.EvaluationContext used on opensource projects

Example 6 with EvaluationContext

use of org.springframework.expression.EvaluationContext in project spring-framework by spring-projects.

the class EvaluationTests method operatorVariants.

@Test
public void operatorVariants() throws Exception {
    SpelExpression expr = (SpelExpression) parser.parseExpression("#a < #b");
    EvaluationContext ctx = new StandardEvaluationContext();
    ctx.setVariable("a", (short) 3);
    ctx.setVariable("b", (short) 6);
    assertTrue(expr.getValue(ctx, Boolean.class));
    ctx.setVariable("b", (byte) 6);
    assertTrue(expr.getValue(ctx, Boolean.class));
    ctx.setVariable("a", (byte) 9);
    ctx.setVariable("b", (byte) 6);
    assertFalse(expr.getValue(ctx, Boolean.class));
    ctx.setVariable("a", 10L);
    ctx.setVariable("b", (short) 30);
    assertTrue(expr.getValue(ctx, Boolean.class));
    ctx.setVariable("a", (byte) 3);
    ctx.setVariable("b", (short) 30);
    assertTrue(expr.getValue(ctx, Boolean.class));
    ctx.setVariable("a", (byte) 3);
    ctx.setVariable("b", 30L);
    assertTrue(expr.getValue(ctx, Boolean.class));
    ctx.setVariable("a", (byte) 3);
    ctx.setVariable("b", 30f);
    assertTrue(expr.getValue(ctx, Boolean.class));
    ctx.setVariable("a", new BigInteger("10"));
    ctx.setVariable("b", new BigInteger("20"));
    assertTrue(expr.getValue(ctx, Boolean.class));
}

Example 7 with EvaluationContext

use of org.springframework.expression.EvaluationContext in project spring-framework by spring-projects.

the class EvaluationTests method testComparison.

@Test
public void testComparison() throws Exception {
    EvaluationContext context = TestScenarioCreator.getTestEvaluationContext();
    boolean trueValue = parser.parseExpression("T(java.util.Date) == Birthdate.Class").getValue(context, Boolean.class);
    assertTrue(trueValue);
}

Example 8 with EvaluationContext

use of org.springframework.expression.EvaluationContext in project spring-framework by spring-projects.

the class PropertyAccessTests method testAccessingOnNullObject.

/**
	 * The standard reflection resolver cannot find properties on null objects but some
	 * supplied resolver might be able to - so null shouldn't crash the reflection resolver.
	 */
@Test
public void testAccessingOnNullObject() throws Exception {
    SpelExpression expr = (SpelExpression) parser.parseExpression("madeup");
    EvaluationContext context = new StandardEvaluationContext(null);
    try {
        expr.getValue(context);
        fail("Should have failed - default property resolver cannot resolve on null");
    } catch (Exception ex) {
        checkException(ex, SpelMessage.PROPERTY_OR_FIELD_NOT_READABLE_ON_NULL);
    }
    assertFalse(expr.isWritable(context));
    try {
        expr.setValue(context, "abc");
        fail("Should have failed - default property resolver cannot resolve on null");
    } catch (Exception ex) {
        checkException(ex, SpelMessage.PROPERTY_OR_FIELD_NOT_WRITABLE_ON_NULL);
    }
}

Example 9 with EvaluationContext

use of org.springframework.expression.EvaluationContext in project spring-framework by spring-projects.

the class SelectionAndProjectionTests method selectionWithSet.

@Test
public void selectionWithSet() throws Exception {
    Expression expression = new SpelExpressionParser().parseRaw("integers.?[#this<5]");
    EvaluationContext context = new StandardEvaluationContext(new SetTestBean());
    Object value = expression.getValue(context);
    assertTrue(value instanceof List);
    List<?> list = (List<?>) value;
    assertEquals(5, list.size());
    assertEquals(0, list.get(0));
    assertEquals(1, list.get(1));
    assertEquals(2, list.get(2));
    assertEquals(3, list.get(3));
    assertEquals(4, list.get(4));
}

Example 10 with EvaluationContext

use of org.springframework.expression.EvaluationContext in project spring-framework by spring-projects.

the class SelectionAndProjectionTests method selectFirstItemInPrimitiveArray.

@Test
public void selectFirstItemInPrimitiveArray() throws Exception {
    Expression expression = new SpelExpressionParser().parseRaw("ints.^[#this<5]");
    EvaluationContext context = new StandardEvaluationContext(new ArrayTestBean());
    Object value = expression.getValue(context);
    assertTrue(value instanceof Integer);
    assertEquals(0, value);
}