import com.sun.corba.se.impl.ior.ObjectAdapterIdArray; //导入依赖的package包/类
private POAImpl( String name, POAImpl parent, ORB orb, int initialState )
{
    super( orb ) ;

    debug = orb.poaDebugFlag ;

    if (debug) {
        ORBUtility.dprint( this, "Creating POA with name=" + name +
            " parent=" + parent ) ;
    }

    this.state     = initialState ;
    this.name      = name ;
    this.parent    = parent;
    children = new HashMap();
    activator = null ;

    // This was done in initialize, but I moved it here
    // to get better searchability when tracing.
    uniquePOAId = getPOAFactory( orb ).newPOAId() ;

    if (parent == null) {
        // This is the root POA, which counts as 1 level
        numLevels = 1 ;
    } else {
        // My level is one more than that of my parent
        numLevels = parent.numLevels + 1 ;

        parent.children.put(name, this);
    }

    // Get an array of all of the POA names in order to
    // create the poaid.
    String[] names = new String[ numLevels ] ;
    POAImpl poaImpl = this ;
    int ctr = numLevels - 1 ;
    while (poaImpl != null) {
        names[ctr--] = poaImpl.name ;
        poaImpl = poaImpl.parent ;
    }

    poaId = new ObjectAdapterIdArray( names ) ;

    invocationCount = 0;

    poaMutex = new ReentrantMutex( orb.poaConcurrencyDebugFlag ) ;

    adapterActivatorCV = new CondVar( poaMutex,
        orb.poaConcurrencyDebugFlag ) ;
    invokeCV           = new CondVar( poaMutex,
        orb.poaConcurrencyDebugFlag ) ;
    beingDestroyedCV   = new CondVar( poaMutex,
        orb.poaConcurrencyDebugFlag ) ;

    isDestroying = new ThreadLocal () {
        protected java.lang.Object initialValue() {
            return Boolean.FALSE;
        }
    };
}