Validation Extension

Summary

Extension for parameter validation.

Extension Inteface

com.alibaba.dubbo.validation.Validation

Extension Configuration

<dubbo:service validation="xxx,yyy" />
<!-- default configuration, it will take effect when there's no validation attribute specified in <dubbo:service> -->
<dubbo:provider validation="xxx,yyy" />

Existing Extension

com.alibaba.dubbo.validation.support.jvalidation.JValidation

Extension Guide

Directory layout:

src
 |-main
    |-java
        |-com
            |-xxx
                |-XxxValidation.java (Validation implementation)
    |-resources
        |-META-INF
            |-dubbo
                |-com.alibaba.dubbo.validation.Validation (plain text file with the content: xxx=com.xxx.XxxValidation)

XxxValidation.java:

package com.xxx;

import com.alibaba.dubbo.validation.Validation;

public class XxxValidation implements Validation {
    public Object getValidator(URL url) {
        // ...
    }
}

XxxValidator.java:

package com.xxx;

import com.alibaba.dubbo.validation.Validator;

public class XxxValidator implements Validator {
    public XxxValidator(URL url) {
        // ...
    }
    public void validate(Invocation invocation) throws Exception {
        // ...
    }
}

META-INF/dubbo/com.alibaba.dubbo.validation.Validation:

xxx=com.xxx.XxxValidation

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