/**
 *  Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
 *  and/or other contributors as indicated by the @authors tag. See the
 *  copyright.txt file in the distribution for a full listing of all
 *  contributors.
 *
 *  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.mapstruct.ap.internal.model.assignment;

import java.util.List;

import org.mapstruct.ap.internal.model.common.Type;
import org.mapstruct.ap.internal.model.common.TypeFactory;
import org.mapstruct.ap.internal.prism.NullValueCheckStrategyPrism;

import static org.mapstruct.ap.internal.prism.NullValueCheckStrategyPrism.ALWAYS;

/**
 * This wrapper handles the situation where an assignment is done for an update method.
 *
 * In case of a pre-existing target the wrapper checks if there is an collection or map initialized on the target bean
 * (not null). If so it uses the addAll (for collections) or putAll (for maps). The collection / map is cleared in case
 * of a pre-existing target {@link org.mapstruct.MappingTarget }before adding the source entries.
 *
 * If there is no pre-existing target, or the target Collection / Map is not initialized (null) the setter is used to
 * create a new Collection / Map with the copy constructor.
 *
 * @author Sjaak Derksen
 */
public class ExistingInstanceSetterWrapperForCollectionsAndMaps
    extends SetterWrapperForCollectionsAndMapsWithNullCheck {

    private final boolean includeSourceNullCheck;

    public ExistingInstanceSetterWrapperForCollectionsAndMaps(Assignment decoratedAssignment,
        List<Type> thrownTypesToExclude,
        Type targetType,
        NullValueCheckStrategyPrism nvms,
        TypeFactory typeFactory,
        boolean fieldAssignment) {

        super(
            decoratedAssignment,
            thrownTypesToExclude,
            targetType,
            typeFactory,
            fieldAssignment
        );
        this.includeSourceNullCheck = ALWAYS == nvms;
    }

    public boolean isIncludeSourceNullCheck() {
        return includeSourceNullCheck;
    }
}