/* NamingContext.java --
   Copyright (C) 2005, 2006 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
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package org.omg.CosNaming;

import org.omg.CosNaming.NamingContextPackage.AlreadyBound;
import org.omg.CosNaming.NamingContextPackage.CannotProceed;
import org.omg.CosNaming.NamingContextPackage.InvalidName;
import org.omg.CosNaming.NamingContextPackage.NotEmpty;
import org.omg.CosNaming.NamingContextPackage.NotFound;

/**
 * The naming context operations. The naming context can
 * store (bound) and retrieve (resolve) the named objects or
 * named child contexts.
 *
 * @see NamingContextExtOperations
 *
 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
 */
public interface NamingContextOperations
{
  /**
   * Gives the object a name, valid in this context.
   *
   * @param a_name the name, being given to the object.
   * @param an_object the object, being named.
   *
   * @throws AlreadyBound if the object is already named in this context.
   * @throws InvalidName if the name has zero length or otherwise invalid.
   */
  void bind(NameComponent[] a_name, org.omg.CORBA.Object an_object)
     throws NotFound, CannotProceed, InvalidName, AlreadyBound;

  /**
   * Gives a child context name, valid in this context.
   *
   * @param a_name the name, being given to the child context.
   * @param a_context the child context being named.
   *
   * @throws AlreadyBound if the child context is already named in
   * the current context.
   */
  void bind_context(NameComponent[] a_name, NamingContext a_context)
             throws NotFound, CannotProceed, InvalidName, AlreadyBound;

  /**
   * Create a new context and give it a given name (bound it)
   * in the current context.
   *
   * @param a_name the name being given to the new context.
   *
   * @return the newly created context.
   *
   * @throws AlreadyBound if the name is already in use.
   * @throws InvalidName if the name has zero length or otherwise invalid.
   */
  NamingContext bind_new_context(NameComponent[] a_name)
                          throws NotFound, AlreadyBound, CannotProceed,
                                 InvalidName;

  /**
   * Destroy this context (must be empty).
   * @throws NotEmpty if the context being destroyed is not empty.
   */
  void destroy()
        throws NotEmpty;

  /**
   * Iterate over all bindings, defined in this namind context.
   *
   * @param amount the maximal number of context to return in the
   * holder a_list. The remaining bindings are accessible via iterator
   * an_iter. If the parameter amount is zero, all bindings are accessed only
   * via this iterator.
   *
   * @param a_list the holder, where the returned bindigs are stored.
   * @param an_iter the iterator that can be used to access the remaining
   * bindings.
   */
  void list(int amount, BindingListHolder a_list, BindingIteratorHolder an_iter);

  /**
   * Creates a new naming context, not bound to any name.
   */
  NamingContext new_context();

  /**
   * Names or renames the object.
   *
   * @param a_name the new name, being given to the object. If
   * the object is already named in this context, it is renamed.
   *
   * @param an_object the object, being named.
   *
   * @throws InvalidName if the name has zero length or otherwise invalid.
   */
  void rebind(NameComponent[] a_name, org.omg.CORBA.Object an_object)
       throws NotFound, CannotProceed, InvalidName;

  /**
   * Names or renames the child context.
   * If the child context is already named in
   * the current context, it is renamed.
   *
   * @param a_name the name, being given to the child context.
   * @param a_context the child context being named.
   *
   * @throws InvalidName if the name has zero length or otherwise invalid.
   */
  void rebind_context(NameComponent[] a_name, NamingContext a_context)
               throws NotFound, CannotProceed, InvalidName;

  /**
   * Get the object, bound to the specified name in this
   * context.
   *
   * @param a_name the object name.
   *
   * @return the object, matching this name. The client
   * usually casts or narrows (using the helper) the returned value
   * to the more specific type.
   *
   * @throws NotFound
   * @throws InvalidName if the name has zero length or otherwise invalid.
   */
  org.omg.CORBA.Object resolve(NameComponent[] a_name)
                        throws NotFound, CannotProceed, InvalidName;

  /**
   * Removes the name from the binding context.
   *
   * @param a_name a name to remove.
   *
   * @throws InvalidName if the name has zero length or otherwise invalid.
   */
  void unbind(NameComponent[] a_name)
       throws NotFound, CannotProceed, InvalidName;
}