Example usage for org.springframework.web.method.support HandlerMethodArgumentResolver supportsParameter

Introduction

In this page you can find the example usage for org.springframework.web.method.support HandlerMethodArgumentResolver supportsParameter.

Prototype

boolean supportsParameter(MethodParameter parameter);

Source Link

Document

Whether the given MethodParameter method parameter is supported by this resolver.

Usage

From source file:net.kaczmarzyk.spring.data.jpa.web.SpecificationArgumentResolver.java

@Override
public boolean supportsParameter(MethodParameter param) {
    for (HandlerMethodArgumentResolver delegate : delegates) {
        if (delegate.supportsParameter(param)) {
            return true;
        }// ww  w. j  av  a2 s  . c  om
    }
    return false;
}

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From source file:net.kaczmarzyk.spring.data.jpa.web.SpecificationArgumentResolver.java

Object resolveArgument(MethodParameter param, ModelAndViewContainer mav, NativeWebRequest req,
        WebDataBinderFactory bider, HandlerMethodArgumentResolver recursiveCaller) throws Exception {

    for (HandlerMethodArgumentResolver delegate : delegates) {
        if (delegate != recursiveCaller && delegate.supportsParameter(param)) {
            return delegate.resolveArgument(param, mav, req, bider);
        }//from   w w  w  .  j a  v a  2 s.  c o  m
    }

    return null;
}

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From source file:org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.java

/**
 * Find a registered {@link HandlerMethodArgumentResolver} that supports the given method parameter.
 *///from   w  w w .jav a  2s  .c om
@Nullable
private HandlerMethodArgumentResolver getArgumentResolver(MethodParameter parameter) {
    HandlerMethodArgumentResolver result = this.argumentResolverCache.get(parameter);
    if (result == null) {
        for (HandlerMethodArgumentResolver methodArgumentResolver : this.argumentResolvers) {
            if (logger.isTraceEnabled()) {
                logger.trace("Testing if argument resolver [" + methodArgumentResolver + "] supports ["
                        + parameter.getGenericParameterType() + "]");
            }
            if (methodArgumentResolver.supportsParameter(parameter)) {
                result = methodArgumentResolver;
                this.argumentResolverCache.put(parameter, result);
                break;
            }
        }
    }
    return result;
}

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