/**
*
* 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.trait;
import com.speedment.runtime.field.Field;
import com.speedment.runtime.field.internal.method.SetToReferenceImpl;
import com.speedment.runtime.field.method.ReferenceGetter;
import com.speedment.runtime.field.method.ReferenceSetter;
import com.speedment.runtime.field.method.SetToReference;
import com.speedment.runtime.typemapper.TypeMapper;
/**
* A representation of an Entity field that is a reference type (eg
* {@code Integer} and not {@code int}).
*
* @param <ENTITY> the entity type
* @param <D> the database value type
* @param <V> the field value type
*
* @author Per Minborg
* @author Emil Forslund
* @since 2.2.0
*/
public interface HasReferenceValue<ENTITY, D, V> extends Field<ENTITY> {
@Override
ReferenceSetter<ENTITY, V> setter();
@Override
ReferenceGetter<ENTITY, V> getter();
@Override
TypeMapper<D, V> typeMapper();
/**
* Gets the value form the Entity field.
*
* @param e entity
* @return the field value
*/
default V get(ENTITY e) {
return getter().apply(e);
}
/**
* Sets the value in the given Entity
*
* @param e entity
* @param value to set
* @return the entity itself
*/
default ENTITY set(ENTITY e, V value) {
return setter().apply(e, value);
}
/**
* Creates and returns a SetToReference with a given value.
*
* @param value to set
* @return a SetToReference with a given value
*/
default SetToReference<ENTITY, D, V> setTo(V value) {
return new SetToReferenceImpl<>(this, value);
}
}