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Micro Distribution of the Payara Project for IBM JDK
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/*
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 *
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.sun.enterprise.config.serverbeans.customvalidators;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;

import java.lang.annotation.Target;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.ElementType;
import javax.validation.Constraint;
import javax.validation.Payload;
import org.jvnet.hk2.config.ConfigBeanProxy;

/** Annotated {@code ConfigBeanProxy} class contains at least one {@code String} 
 * field, which value must point to key attribute of some other existing 
 * {@code ConfigBeanProxy} instance.

 * Use {@link ReferenceConstraint.RemoteKey} annotation on appropriate getters 
 * to define such fields.

 * This constraint is supported for {@code ConfigBeanProxy} only.
 *
 * @author Martin Mares
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@Documented
@Constraint(validatedBy = ReferenceValidator.class)
public @interface ReferenceConstraint {
    String message() default "Invalid reference in provided configuration.";
    Class[] groups() default {};
    Class[] payload() default {};
    
    /** In GlassFish a lot of configurations are made in batch and its references
     * could not be fulfilled during creation process.
     */
    boolean skipDuringCreation();
    
    /** This annotation gets set only on getter method and in combination with 
     * {@link ReferenceConstraint} annotation on the class.
     */
    @Retention(RetentionPolicy.RUNTIME)
    @Target(ElementType.METHOD)
    @Documented
    public @interface RemoteKey {
        String message() default "";
        /** Type of {@code ConfigBeanProxy} where this remote key points to. 
         */
        Class type(); 
    }
}