Example usage for org.springframework.data.gemfire.function GemfireFunctionUtils getAnnotationParameterPosition

Introduction

In this page you can find the example usage for org.springframework.data.gemfire.function GemfireFunctionUtils getAnnotationParameterPosition.

Prototype

public static int getAnnotationParameterPosition(Method method, Class<?> targetAnnotationType,
        Class<?>[] requiredTypes) 

Source Link

Document

Determine the order position of a an annotated method parameter

Usage

From source file:org.springframework.data.gemfire.function.FunctionContextInjectingArgumentResolver.java

public FunctionContextInjectingArgumentResolver(Method method) {
    this.method = method;

    int regionDataAnnotationParameterPosition = GemfireFunctionUtils.getAnnotationParameterPosition(method,
            RegionData.class, new Class[] { Map.class });

    int regionTypeParameterPosition = getArgumentTypePosition(method, Region.class);

    if (regionDataAnnotationParameterPosition >= 0 && regionTypeParameterPosition >= 0) {
        Assert.isTrue(regionDataAnnotationParameterPosition == regionTypeParameterPosition, String.format(
                "Function method signature for method %s cannot contain an @RegionData parameter and a different Region type parameter",
                method.getName()));/*  w  ww .  java 2s  . c  o m*/
    }

    regionParameterPosition = (regionDataAnnotationParameterPosition >= 0
            ? regionDataAnnotationParameterPosition
            : (regionTypeParameterPosition >= 0 ? regionTypeParameterPosition : -1));

    filterParameterPosition = GemfireFunctionUtils.getAnnotationParameterPosition(method, Filter.class,
            new Class[] { Set.class });

    if (regionParameterPosition >= 0 && filterParameterPosition >= 0) {
        Assert.state(regionParameterPosition != filterParameterPosition,
                "region parameter and filter parameter must be different");
    }

    functionContextParameterPosition = getArgumentTypePosition(method, FunctionContext.class);

    resultSenderParameterPosition = getArgumentTypePosition(method, ResultSender.class);
}

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