extensions/assistedinject/src/com/google/inject/assistedinject/ParameterListKey.java

/**
 * Copyright (C) 2007 Google Inc.
 *
 * 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 com.google.inject.assistedinject;

import com.google.inject.TypeLiteral;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * A list of {@link TypeLiteral}s to match an injectable Constructor's assited
 * parameter types to the corresponding factory method.
 *
 * @author jmourits@google.com (Jerome Mourits)
 * @author jessewilson@google.com (Jesse Wilson)
 */
class ParameterListKey {
  
  private final List<Type> paramList;
  
  public ParameterListKey(List<Type> paramList) {
    this.paramList = new ArrayList<Type>(paramList);
  }
  
  public ParameterListKey(Type[] types) {
    this(Arrays.asList(types));
  }
  
  @Override
  public boolean equals(Object o) {
    if (o == this) {
      return true;
    }
    if (!(o instanceof ParameterListKey)) {
      return false;
    }
    ParameterListKey other = (ParameterListKey) o;
    return paramList.equals(other.paramList);
  }
  
  @Override
  public int hashCode() {
    return paramList.hashCode();
  }

  @Override
  public String toString() {
    return paramList.toString();
  }
}