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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

package org.eclipse.jface.text;


/**
 * Extension interface for {@link org.eclipse.jface.text.IDocumentPartitioner}. Adds the
 * concept of rewrite sessions. A rewrite session is a sequence of replace
 * operations that form a semantic unit.
 *
 * @since 3.1
 */
public interface IDocumentPartitionerExtension3 {

	/**
	 * Tells the document partitioner that a rewrite session started. A rewrite
	 * session is a sequence of replace operations that form a semantic unit.
	 * The document partitioner is allowed to use that information for internal
	 * optimization.
	 *
	 * @param session the rewrite session
	 * @throws IllegalStateException in case there is already an active rewrite session
	 */
	void startRewriteSession(DocumentRewriteSession session) throws IllegalStateException;

	/**
	 * Tells the document partitioner that the rewrite session has finished.
	 * This method is only called when startRewriteSession has
	 * been called before.
	 *
	 * @param session the rewrite session
	 */
	void stopRewriteSession(DocumentRewriteSession session);

	/**
	 * Returns the active rewrite session of this document or null.
	 *
	 * @return the active rewrite session or null
	 */
	DocumentRewriteSession getActiveRewriteSession();

	/**
	 * Connects this partitioner to a document. Connect indicates the begin of
	 * the usage of the receiver as partitioner of the given document. Thus,
	 * resources the partitioner needs to be operational for this document
	 * should be allocated.
	 * 
	 * The caller of this method must ensure that this partitioner is also set
	 * as the document's document partitioner.
	 * 
	 * delayInitialization indicates whether the partitioner is
	 * allowed to delay it initial computation of the document's partitioning
	 * until it has to answer the first query.
	 *
	 * Replaces {@link IDocumentPartitioner#connect(IDocument)}.
	 *
	 * @param document the document to be connected to
	 * @param delayInitialization true if initialization can be delayed, false otherwise
	 */
	void connect(IDocument document, boolean delayInitialization);
}