compositeresolverimpl.java

java1.6众多例子参考

package com.sun.corba.se.impl.resolver ;

import java.util.Set ;
import java.util.HashSet ;

import com.sun.corba.se.spi.resolver.Resolver ;

public class CompositeResolverImpl implements Resolver {
    private Resolver first ;
    private Resolver second ;

    public CompositeResolverImpl( Resolver first, Resolver second ) 
    {
	this.first = first ;
	this.second = second ;
    }

    public org.omg.CORBA.Object resolve( String name ) 
    {
	org.omg.CORBA.Object result = first.resolve( name ) ;
	if (result == null) 
	    result = second.resolve( name ) ;
	return result ;
    }

    public java.util.Set list() 
    {
	Set result = new HashSet() ;
	result.addAll( first.list() ) ;
	result.addAll( second.list() ) ;
	return result ;
    }
}