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package com.sun.enterprise.config.serverbeans;

import org.jvnet.hk2.component.Injectable;
import org.jvnet.hk2.config.*;
import static org.glassfish.config.support.Constants.NAME_SERVER_REGEX;

import java.beans.PropertyVetoException;

import javax.validation.constraints.NotNull;
import javax.validation.constraints.Pattern;

/**
 * Element relating a reference to a cluster to be load balanced to an
 * (optional) health-checker
 *
 */

/* @XmlType(name = "", propOrder = {
    "healthChecker"
}) */

@Configured
public interface ClusterRef extends ConfigBeanProxy, Injectable, Ref  {
    
    /**
     * Gets the value of the ref property.
     *
     * @return possible object is
     *         {@link String }
     */
    @Override
    @Attribute(key=true)
    @NotNull
    @Pattern(regexp=NAME_SERVER_REGEX)
    public String getRef();

    /**
     * Sets the value of the ref property.
     *
     * @param value allowed object is
     *              {@link String }
     */
    @Override
    public void setRef(String value) throws PropertyVetoException;

    /**
     * Gets the value of the lbPolicy property.
     *
     * load balancing policy to be used for this cluster. Possible
     * values are round-robin , weighted-round-robin or
     * user-defined. round-robin is the default. For
     * weighted-round-robin, the weights of the instance are
     * considered while load balancing. For user-defined, the policy
     * is implemented by a shared library which is loaded by the
     * load balancer and the instance selected is delegated to the
     * loaded module.
     * 
     * @return possible object is
     *         {@link String }
     */
    @Attribute (defaultValue="round-robin")
    public String getLbPolicy();

    /**
     * Sets the value of the lbPolicy property.
     *
     * @param value allowed object is
     *              {@link String }
     */
    public void setLbPolicy(String value) throws PropertyVetoException;

    /**
     * Gets the value of the lbPolicyModule property.
     *
     * Specifies the absolute path to the shared library implementing the
     * user-defined policy. This should be specified only when the lb-policy
     * is user-defined. The shared library should exist and be readable in
     * the machine where load balancer is running.
     *
     * @return possible object is
     *         {@link String }
     */
    @Attribute
    public String getLbPolicyModule();

    /**
     * Sets the value of the lbPolicyModule property.
     *
     * @param value allowed object is
     *              {@link String }
     */
    public void setLbPolicyModule(String value) throws PropertyVetoException;

    /**
     * Gets the value of the healthChecker property.
     *
     * Each cluster would be configured for a ping based health check mechanism.
     * 
     * @return possible object is
     *         {@link HealthChecker }
     */
    @Element
    public HealthChecker getHealthChecker();

    /**
     * Sets the value of the healthChecker property.
     *
     * @param value allowed object is
     *              {@link HealthChecker }
     */
    public void setHealthChecker(HealthChecker value) throws PropertyVetoException;
}