Resource.java

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package com.sun.enterprise.config.serverbeans;

import org.jvnet.hk2.config.Attribute;
import org.jvnet.hk2.config.ConfigBeanProxy;
import org.jvnet.hk2.config.Configured;
import org.jvnet.hk2.config.DuckTyped;

import javax.validation.constraints.Pattern;
import java.beans.PropertyVetoException;

/**
 * Tag interface for all types of resource.
 * 
 * @author Jerome Dochez
 */
@Configured
public interface Resource extends ConfigBeanProxy {

    /**
     * Gets the value of the objectType property.
     * where object-type defines the type of the resource.
     * It can be:
     *  system-all - These are system resources for all instances and DAS
     *  system-all-req - These are system-all resources that are required to be
     *                   configured in the system (cannot be deleted). 
     *  system-admin - These are system resources only in DAS
     *  system-instance - These are system resources only in instances
     *                    (and not DAS)
     *  user - User resources (This is the default for all elements)
     *
     * @return possible object is
     *         {@link String }
     */
    @Attribute (defaultValue="user")
    @Pattern(regexp="(system-all|system-all-req|system-admin|system-instance|user)")            
    String getObjectType();

    /**
     * Sets the value of the objectType property.
     *
     * @param value allowed object is {@link String }
     * @throws PropertyVetoException if the change is unacceptable to one
     * of the listeners.
     */
    void setObjectType(String value) throws PropertyVetoException;

    /**
     * Gets the value of deployment-order.
     * @return
     */
    @Attribute (defaultValue = "100",dataType = Integer.class)
    String getDeploymentOrder();

    /**
     * Sets the value of the deployment order.
     * @param value
     * @throws PropertyVetoException
     */
    void setDeploymentOrder(String value) throws PropertyVetoException;


    @DuckTyped
    String getIdentity();
    
    class Duck {
        public static String getIdentity(Resource resource){
            return null;
        }
        /*
         * True if this resource should be copied to any new instance or cluster.
         * Note: this isn't a DuckTyped method because it requires every subclass
         * to implement this method.
         */
        public static boolean copyToInstance(Resource resource) {
            String ot = resource.getObjectType();
            return "system-all".equals(ot) || 
                    "system-all-req".equals(ot) ||
                    "system-instance".equals(ot);
        }
    }
}