Example usage for org.springframework.expression.spel.support StandardEvaluationContext registerMethodFilter

Introduction

In this page you can find the example usage for org.springframework.expression.spel.support StandardEvaluationContext registerMethodFilter.

Prototype

public void registerMethodFilter(Class<?> type, MethodFilter filter) throws IllegalStateException 

Source Link

Document

Register a MethodFilter which will be called during method resolution for the specified type.

Usage

From source file:org.springframework.integration.handler.support.MessagingMethodInvokerHelper.java

private void prepareEvaluationContext() throws Exception {
    StandardEvaluationContext context = getEvaluationContext(false);
    Class<?> targetType = AopUtils.getTargetClass(this.targetObject);
    if (this.method != null) {
        context.registerMethodFilter(targetType, new FixedMethodFilter(this.method));
        if (this.expectedType != null) {
            Assert.state(//from   w  w  w. j av a  2s.c  o  m
                    context.getTypeConverter().canConvert(TypeDescriptor.valueOf((this.method).getReturnType()),
                            this.expectedType),
                    "Cannot convert to expected type (" + this.expectedType + ") from " + this.method);
        }
    } else {
        AnnotatedMethodFilter filter = new AnnotatedMethodFilter(this.annotationType, this.methodName,
                this.requiresReply);
        Assert.state(canReturnExpectedType(filter, targetType, context.getTypeConverter()),
                "Cannot convert to expected type (" + this.expectedType + ") from " + this.method);
        context.registerMethodFilter(targetType, filter);
    }
    context.setVariable("target", this.targetObject);
    context.registerFunction("requiredHeader",
            ParametersWrapper.class.getDeclaredMethod("getHeader", Map.class, String.class));
}

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From source file:org.springframework.integration.util.MessagingMethodInvokerHelper.java

private void prepareEvaluationContext(StandardEvaluationContext context, Object method,
        Class<? extends Annotation> annotationType) {
    Class<?> targetType = AopUtils.getTargetClass(this.targetObject);
    if (method instanceof Method) {
        context.registerMethodFilter(targetType, new FixedMethodFilter((Method) method));
        if (expectedType != null) {
            Assert.state(//from w w w.  j a v  a2s .c  o m
                    context.getTypeConverter().canConvert(
                            TypeDescriptor.valueOf(((Method) method).getReturnType()),
                            TypeDescriptor.valueOf(expectedType)),
                    "Cannot convert to expected type (" + expectedType + ") from " + method);
        }
    } else if (method == null || method instanceof String) {
        AnnotatedMethodFilter filter = new AnnotatedMethodFilter(annotationType, (String) method,
                this.requiresReply);
        Assert.state(canReturnExpectedType(filter, targetType, context.getTypeConverter()),
                "Cannot convert to expected type (" + expectedType + ") from " + method);
        context.registerMethodFilter(targetType, filter);
    }
    context.setVariable("target", targetObject);
}

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