com.speedment.runtime.field.internal.method.SetToReferenceImpl Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of runtime-field Show documentation

Partly generated model of the fields that represent columns in the database. Fields can be used to produce special predicates and functions that contain metadata that Speedment can analyze runtime.

There is a newer version: 3.2.10

Show newest version

/**
 *
 * Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved.
 *
 * 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.speedment.runtime.field.internal.method;

import com.speedment.runtime.field.method.SetToReference;
import com.speedment.runtime.field.trait.HasReferenceValue;

import static java.util.Objects.requireNonNull;

/**
 * A {@code set} operation that will apply a value {@link #getValue()} 
 * to the field {@link #getField()} of any instance passed to it.
 * 
 * This particular implementation is generic so that any non-primitive
 * value type can be used.
 * 
 * @param   the entity type
 * @param        the value type
 * 
 * @author  Per Minborg
 * @since   2.2.0
 */
public final class SetToReferenceImpl implements SetToReference {

    private final HasReferenceValue field;
    private final V newValue;

    public SetToReferenceImpl(HasReferenceValue field, V newValue) {
        this.field = requireNonNull(field);
        this.newValue = requireNonNull(newValue);
    }

    @Override
    public HasReferenceValue getField() {
        return field;
    }

    @Override
    public V getValue() {
        return newValue;
    }

    @Override
    public ENTITY apply(ENTITY entity) {
        requireNonNull(entity);
        return field.setter().apply(entity, newValue);
    }
}