package org.geotools.styling.builder;
import org.geotools.Builder;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.filter.expression.ChildExpressionBuilder;
import org.geotools.styling.FeatureTypeConstraint;
import org.geotools.styling.LayerFeatureConstraints;
import org.geotools.styling.StyleFactory;
/**
*
*
* @source $URL$
*/
public class LayerFeatureConstraintsBuilder<P> implements Builder<LayerFeatureConstraints> {
private StyleFactory sf = CommonFactoryFinder.getStyleFactory(null);
private P parent;
private ChildExpressionBuilder<LayerFeatureConstraintsBuilder<P>> x = new ChildExpressionBuilder<LayerFeatureConstraintsBuilder<P>>(
this);
private ChildExpressionBuilder<LayerFeatureConstraintsBuilder<P>> y = new ChildExpressionBuilder<LayerFeatureConstraintsBuilder<P>>(
this);
boolean unset = true; // current value is null
public LayerFeatureConstraintsBuilder() {
this(null);
}
public LayerFeatureConstraintsBuilder(P parent) {
this.parent = parent;
reset();
}
public LayerFeatureConstraints build() {
if (unset) {
return null;
}
FeatureTypeConstraint[] featureTypeConstraints = null;
LayerFeatureConstraints constraints = sf
.createLayerFeatureConstraints(featureTypeConstraints);
return constraints;
}
public P end() {
return parent;
}
public LayerFeatureConstraintsBuilder<P> reset() {
x.reset().literal(0);
y.reset().literal(0);
unset = false;
return this;
}
public LayerFeatureConstraintsBuilder<P> reset(LayerFeatureConstraints constraints) {
if (constraints == null) {
return reset();
}
unset = false;
return this;
}
public LayerFeatureConstraintsBuilder<P> unset() {
x.unset();
y.unset();
unset = true;
return this;
}
}