package com.tesora.dve.sql.schema.cache; /* * #%L * Tesora Inc. * Database Virtualization Engine * %% * Copyright (C) 2011 - 2014 Tesora Inc. * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License, version 3, * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * #L% */ import com.tesora.dve.exceptions.PEException; import com.tesora.dve.sql.schema.SchemaContext; public interface PreparedPlanCache { // look up a prepared plan independent of connection public CachedPreparedStatement getPreparedStatement(PlanCacheKey pck); // look up a prepared plan by connection public CachedPreparedStatement getPreparedStatement(SchemaContext sc, int connID, String stmtID) throws PEException; public void putPreparedStatement(CachedPreparedStatement cps, int connID, String stmtID, String rawSQL, boolean reregister) throws PEException; public void clearPreparedStatement(int connID, String stmtID); public void invalidate(SchemaCacheKey<?> sck); void onCacheLimitUpdate(CacheSegment cs, CacheLimits limits); }