/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package net.sourceforge.phpdt.internal.codeassist;

import net.sourceforge.phpdt.internal.compiler.env.INameEnvironment;

/**
 * This interface defines the API that may be used to implement any
 * search-based tool (such as a CodeAssist, a Finder, ...).
 * It is mainly used to hide from the search tool the implementation
 * of the underlying environment and its constructions.
 */
public interface ISearchableNameEnvironment extends INameEnvironment {

	/**
	 * Find the packages that start with the given prefix.
	 * A valid prefix is a qualified name separated by periods
	 * (ex. java.util).
	 * The packages found are passed to:
	 *    ISearchRequestor.acceptPackage(char[][] packageName)
	 */
	void findPackages(char[] prefix, ISearchRequestor requestor);

	/**
	 * Find the top-level types (classes and interfaces) that are defined
	 * in the current environment and whose name starts with the
	 * given prefix. The prefix is a qualified name separated by periods
	 * or a simple name (ex. java.util.V or V).
	 *
	 * The types found are passed to one of the following methods (if additional
	 * information is known about the types):
	 *    ISearchRequestor.acceptType(char[][] packageName, char[] typeName)
	 *    ISearchRequestor.acceptClass(char[][] packageName, char[] typeName, int modifiers)
	 *    ISearchRequestor.acceptInterface(char[][] packageName, char[] typeName, int modifiers)
	 *
	 * This method can not be used to find member types... member
	 * types are found relative to their enclosing type.
	 */
	void findTypes(char[] prefix, ISearchRequestor requestor);
}