// This software is released into the Public Domain. See copying.txt for details.
package org.openstreetmap.osmosis.pgsnapshot.v0_6.impl;
import java.util.Comparator;
import org.openstreetmap.osmosis.core.database.DbOrderedFeature;
import org.openstreetmap.osmosis.core.store.Storeable;
/**
* Compares way nodes to allow them to be sorted by way id then sequence
* number.
*
* @author Brett Henderson
* @param <T>
* The encapsulated feature type.
*/
public class DbOrderedFeatureComparator<T extends Storeable> implements Comparator<DbOrderedFeature<T>> {
/**
* {@inheritDoc}
*/
public int compare(DbOrderedFeature<T> o1, DbOrderedFeature<T> o2) {
long way1Id;
long way2Id;
way1Id = o1.getEntityId();
way2Id = o2.getEntityId();
if (way1Id != way2Id) {
if (way1Id < way2Id) {
return -1;
} else {
return 1;
}
}
return o1.getSequenceId() - o2.getSequenceId();
}
}