net.projectmonkey.internal.PropertyMappingImpl Maven / Gradle / Ivy

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/*
 * Copyright 2011 the original author or authors.
 *
 * 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 net.projectmonkey.internal;

import java.util.ArrayList;
import java.util.List;

import net.projectmonkey.internal.MappingBuilderImpl.MappingOptions;
import net.projectmonkey.spi.PropertyInfo;
import net.projectmonkey.spi.PropertyMapping;


/**
 * @author Jonathan Halterman
 */
class PropertyMappingImpl extends MappingImpl implements PropertyMapping {
  private final List sourceAccessors;

  /**
   * Creates an implicit PropertyMapping.
   */
  PropertyMappingImpl(List sourceAccessors,
      List destinationMutators) {
    super(destinationMutators);
    this.sourceAccessors = new ArrayList(sourceAccessors);
  }

  /**
   * Creates an explicit PropertyMapping.
   */
  PropertyMappingImpl(List sourceAccessors,
      List destinationMutators, MappingOptions options) {
    super(destinationMutators, options);
    this.sourceAccessors = new ArrayList(sourceAccessors);
  }

  /**
   * Creates a merged PropertyMapping.
   */
  PropertyMappingImpl(PropertyMappingImpl mapping, List mergedMutators) {
    super(mapping, mergedMutators);
    this.sourceAccessors = mapping.sourceAccessors;
  }

  public PropertyInfo getLastSourceProperty() {
    return sourceAccessors == null || sourceAccessors.isEmpty() ? null : sourceAccessors
        .get(sourceAccessors.size() - 1);
  }

  public List getSourceProperties() {
    return sourceAccessors;
  }

  @Override
  public String toString() {
    return String.format("PropertyMapping[%s -> %s]", getLastSourceProperty(),
        getLastDestinationProperty());
  }

  @Override
  MappingImpl createMergedCopy(List mergedMutators) {
    return new PropertyMappingImpl(this, mergedMutators);
  }
}