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/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright 2011 OpenConcerto, by ILM Informatique. All rights reserved.
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*
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* The contents of this file are subject to the terms of the GNU General Public License Version 3
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* only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
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* copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
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* language governing permissions and limitations under the License.
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*
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* When distributing the software, include this License Header Notice in each file.
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*/
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package org.openconcerto.sql.model;
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import java.util.HashMap;
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import java.util.Map;
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// do not use fields DEFAULT since they're not always constants, plus for some systems we need a
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// trip to the db anyway to interpret them and they're not easily updateable.
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// MAYBE don't piggyback on undefinedID, rather create a defaultValuesID (eg add column in
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// FWK_UNDEF_ID) that would be archived so as to not appear in results
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public class UndefinedRowValuesCache {
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private static final UndefinedRowValuesCache instance = new UndefinedRowValuesCache();
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public synchronized static UndefinedRowValuesCache getInstance() {
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return instance;
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}
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private final Map<SQLTable, SQLRowValues> map = new HashMap<SQLTable, SQLRowValues>();
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public SQLRowValues getDefaultRowValues(final SQLTable t) {
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SQLRowValues rv = this.map.get(t);
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if (rv == null) {
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rv = new SQLRowValues(t);
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final SQLRow undefRow = t.getRow(t.getUndefinedID());
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if (undefRow == null)
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throw new IllegalStateException(t.getSQLName() + " doesn't contain undef ID " + t.getUndefinedID());
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rv.loadAllSafe(undefRow);
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this.map.put(t, rv);
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}
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return rv;
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}
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}
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