/**
*
* 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.predicate.reference;
import com.speedment.common.tuple.Tuple2;
import com.speedment.runtime.field.internal.predicate.AbstractFieldPredicate;
import com.speedment.runtime.field.internal.predicate.BetweenPredicate;
import com.speedment.runtime.field.predicate.FieldPredicate;
import com.speedment.runtime.field.predicate.Inclusion;
import com.speedment.runtime.field.trait.HasReferenceValue;
import static com.speedment.runtime.field.predicate.PredicateType.BETWEEN;
import static java.util.Objects.requireNonNull;
/**
*
* @param <ENTITY> the entity type
* @param <D> the database type
* @param <V> the value type
*
* @author Per Minborg
* @since 2.2.0
*/
public final class ReferenceBetweenPredicate<ENTITY, D, V extends Comparable<? super V>>
extends AbstractFieldPredicate<ENTITY, V, HasReferenceValue<ENTITY, D, V>>
implements BetweenPredicate, Tuple2<V, V> {
private final V start;
private final V end;
private final Inclusion inclusion;
public ReferenceBetweenPredicate(
final HasReferenceValue<ENTITY, D, V> referenceField,
final V start,
final V end,
final Inclusion inclusion
) {
this(referenceField, start, end, inclusion, false);
}
ReferenceBetweenPredicate(
final HasReferenceValue<ENTITY, D, V> referenceField,
final V start,
final V end,
final Inclusion inclusion,
final boolean negated
) {
super(BETWEEN, referenceField, entity -> {
final V fieldValue = referenceField.get(entity);
switch (inclusion) {
case START_EXCLUSIVE_END_EXCLUSIVE :
if (fieldValue == null) return false;
else if (start == null || end == null) return false;
else return (start.compareTo(fieldValue) < 0 && end.compareTo(fieldValue) > 0);
case START_EXCLUSIVE_END_INCLUSIVE :
if (fieldValue == null) return start != null && end == null;
else if (start == null || end == null) return false;
else return (start.compareTo(fieldValue) < 0 && end.compareTo(fieldValue) >= 0);
case START_INCLUSIVE_END_EXCLUSIVE :
if (fieldValue == null) return start == null && end != null;
else if (start == null || end == null) return false;
return (start.compareTo(fieldValue) <= 0 && end.compareTo(fieldValue) > 0);
case START_INCLUSIVE_END_INCLUSIVE :
if (fieldValue == null) return start == null || end == null;
else if (start == null || end == null) return false;
return (start.compareTo(fieldValue) <= 0 && end.compareTo(fieldValue) >= 0);
default : throw new IllegalStateException("Inclusion unknown: " + inclusion);
}
}, negated);
this.start = start;
this.end = end;
this.inclusion = requireNonNull(inclusion);
}
@Override
public V get0() {
return start;
}
@Override
public V get1() {
return end;
}
@Override
public Inclusion getInclusion() {
return inclusion;
}
@Override
public ReferenceBetweenPredicate<ENTITY, D, V> negate() {
return new ReferenceBetweenPredicate<>(getField(), start, end, inclusion, !isNegated());
}
}