Package org.eclipse.jdt.debug.eval

Source Code of org.eclipse.jdt.debug.eval.EvaluationManager

/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*     IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.debug.eval;

import java.io.File;

import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.debug.core.IJavaDebugTarget;
import org.eclipse.jdt.internal.debug.eval.LocalEvaluationEngine;
import org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine;

/**
* The evaluation manager provides factory methods for creating evaluation
* engines.
*
* @see org.eclipse.jdt.debug.eval.IEvaluationEngine
* @see org.eclipse.jdt.debug.eval.IClassFileEvaluationEngine
* @see org.eclipse.jdt.debug.eval.IAstEvaluationEngine
* @see org.eclipse.jdt.debug.eval.IEvaluationResult
* @see org.eclipse.jdt.debug.eval.IEvaluationListener
* @since 2.0
* @noinstantiate This class is not intended to be instantiated by clients.
* @noextend This class is not intended to be subclassed by clients.
*/
public class EvaluationManager {

  /**
   * Not to be instantiated
   */
  private EvaluationManager() {
  }

  /**
   * Creates and returns a new evaluation engine that performs evaluations for
   * local Java applications by deploying class files.
   *
   * @param project
   *            the Java project in which expressions are to be compiled
   * @param target
   *            the Java debug target in which expressions are to be evaluated
   * @param directory
   *            the directory where support class files are deployed to assist
   *            in the evaluation. The directory must exist.
   * @return an evaluation engine
   */
  public static IClassFileEvaluationEngine newClassFileEvaluationEngine(
      IJavaProject project, IJavaDebugTarget target, File directory) {
    return new LocalEvaluationEngine(project, target, directory);
  }

  /**
   * Creates and returns a new evaluation engine that performs evaluations by
   * compiling expressions into abstract syntax trees (ASTs), and interpreting
   * the AST over a JDI connection. This type of evaluation engine is capable
   * of performing remote evaluations.
   *
   * @param project
   *            the Java project in which expressions are to be compiled
   * @param target
   *            the Java debug target in which expressions are to be evaluated
   * @return an evaluation engine
   */
  public static IAstEvaluationEngine newAstEvaluationEngine(
      IJavaProject project, IJavaDebugTarget target) {
    return new ASTEvaluationEngine(project, target);
  }
}
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