AccessorOptimizer.java

/**
 * MVEL 2.0
 * Copyright (C) 2007 The Codehaus
 * Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.mvel2.optimizers;

import org.mvel2.ParserContext;
import org.mvel2.compiler.Accessor;
import org.mvel2.integration.VariableResolverFactory;

public interface AccessorOptimizer {
  public void init();

  public Accessor optimizeAccessor(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef,
                                   VariableResolverFactory factory, boolean rootThisRef, Class ingressType);

  /*
    * This method is to optimize the accessor which is potentially in the middle of the bean property chain.
    * If 'first' is true, it starts with the top level.
   */
  default Accessor optimizeAccessor(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef,
                                    VariableResolverFactory factory, boolean rootThisRef, Class ingressType, boolean first) {
    throw new UnsupportedOperationException();
  }

  public Accessor optimizeSetAccessor(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef,
                                      VariableResolverFactory factory, boolean rootThisRef, Object value, Class ingressType);

  public Accessor optimizeCollection(ParserContext pCtx, Object collectionGraph, Class type, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory);

  public Accessor optimizeObjectCreation(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory);

  public Object getResultOptPass();

  public Class getEgressType();

  public boolean isLiteralOnly();
}