package com.vividsolutions.jts.geom.util; import com.vividsolutions.jts.geom.*; /** * A visitor to {@link Geometry} componets, which * allows short-circuiting when a defined condition holds. * * @version 1.7 */ public abstract class ShortCircuitedGeometryVisitor { private boolean isDone = false; public ShortCircuitedGeometryVisitor() { } public void applyTo(Geometry geom) { for (int i = 0; i < geom.getNumGeometries() && ! isDone; i++) { Geometry element = geom.getGeometryN(i); if (! (element instanceof GeometryCollection)) { visit(element); if (isDone()) { isDone = true; return; } } else applyTo(element); } } protected abstract void visit(Geometry element); protected abstract boolean isDone(); }