Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/StaticWQKmsCacheKey.java @ 8659:af415396d9ca
(issue1803) Use MD5 instead of a homegrown hashing algorithm
For creating a digest of the parametrization we should use an
algorithm that does not create collisions if there are small changes
in the parametrization so that wrong results are returned.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Thu, 02 Apr 2015 17:40:18 +0200 |
parents | 26c7aa469bfc |
children | 23264d1a528f |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.model; import java.io.Serializable; /** * Caching-Key object for 'static' wst- data. */ public final class StaticWQKmsCacheKey implements Serializable { public static final String CACHE_NAME = "wst-wq-value-table-static"; private int column; private int wst_id; public StaticWQKmsCacheKey(int column, int wst_id) { this.wst_id = wst_id; this.column = column; } public int hashCode() { return (wst_id << 8) | column; } public boolean equals(Object other) { if (!(other instanceof StaticWQKmsCacheKey)) { return false; } StaticWQKmsCacheKey o = (StaticWQKmsCacheKey) other; return this.wst_id == o.wst_id && this.column == o.column; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :