com.querydsl.spatial.MultiCurveExpression Maven / Gradle / Ivy
/*
* Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
*
* 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.querydsl.spatial;
import javax.annotation.Nullable;
import org.geolatte.geom.GeometryCollection;
import com.querydsl.core.types.Expression;
import com.querydsl.core.types.dsl.BooleanExpression;
import com.querydsl.core.types.dsl.Expressions;
import com.querydsl.core.types.dsl.NumberExpression;
/**
* A MultiCurve is a 1-dimensional GeometryCollection whose elements are Curves.
*
* @author tiwe
*
* @param
*/
public abstract class MultiCurveExpression extends GeometryCollectionExpression {
private static final long serialVersionUID = 6983316799469849656L;
@Nullable
private transient volatile BooleanExpression closed;
@Nullable
private transient volatile NumberExpression length;
public MultiCurveExpression(Expression mixin) {
super(mixin);
}
/**
* Returns 1 (TRUE) if this MultiCurve is closed [StartPoint ( ) = EndPoint ( ) for each
* Curve in this MultiCurve].
*
* @return closed
*/
public BooleanExpression isClosed() {
if (closed == null) {
closed = Expressions.booleanOperation(SpatialOps.IS_CLOSED, mixin);
}
return closed;
}
/**
* The Length of this MultiCurve which is equal to the sum of the lengths of the element
* Curves.
*
* @return length
*/
public NumberExpression length() {
if (length == null) {
length = Expressions.numberOperation(Double.class, SpatialOps.LENGTH, mixin);
}
return length;
}
}