NamedReferencePair.java

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package com.sun.enterprise.deployment;

import java.io.Serializable;

import org.glassfish.deployment.common.Descriptor;

    /** I am a pairing between a descriptor and a descriptor that has a JNDI name.
    *@author Danny Coward
    */

public class NamedReferencePair implements Serializable {
    
    // Types of named reference pairs
    public static final int EJB = 1;
    public static final int EJB_REF = 2;
    public static final int RESOURCE_REF = 3;
    public static final int RESOURCE_ENV_REF = 4;

    private Descriptor referant;
    private NamedDescriptor referee;
    private int type;
    
    public static NamedReferencePair createEjbPair
        (EjbDescriptor referant, EjbDescriptor referee) 
    {
      if (referant instanceof Descriptor)
        return new NamedReferencePair((Descriptor) referant, referee, EJB); // FIXME by srini - can we extract intf to avoid this
      else
        return null;
    }
        
    public static NamedReferencePair createEjbRefPair
        (Descriptor referant, EjbReferenceDescriptor referee)
    {
        return new NamedReferencePair(referant, referee, EJB_REF);
    }

    public static NamedReferencePair createResourceRefPair
        (Descriptor referant, ResourceReferenceDescriptor referee)
    {
        return new NamedReferencePair(referant, referee, RESOURCE_REF);
    }

    public static NamedReferencePair createResourceEnvRefPair
        (Descriptor referant, ResourceEnvReferenceDescriptor referee)
    {
        return new NamedReferencePair(referant, referee, RESOURCE_ENV_REF);
    }
    
    /** Construct a pairing between the given descriptor and the object
    * it has with a jndi name.*/
    protected NamedReferencePair(Descriptor referant, NamedDescriptor referee, 
                                 int type) {
	this.referant = referant;
	this.referee  = referee;
        this.type     = type;
    }

    /** Gets the descriptor with the named descriptor. */
    public Descriptor getReferant() {
	return this.referant;
    }
    
    /** Gets the named descriptor for the decriptor.*/
    public NamedDescriptor getReferee() {
	return this.referee;
    }

    public String getPairTypeName() {
        switch(this.type) {
            case EJB : return "EJB"; 
            case EJB_REF : return "EJB REF";
            case RESOURCE_REF : return "RESOURCE REF";
            case RESOURCE_ENV_REF : return "RESOURCE ENV REF";
        }
        throw new IllegalStateException("unknown type = " + type);        
    }

    public int getPairType() {
        return this.type;
    }

    /** My pretty format. */
    public void print(StringBuffer toStringBuffer) {
	toStringBuffer.append("NRP: ").append(referant.getName()).append(" -> ").append(((Descriptor) referee).getName());
    }
    
}