diff options
Diffstat (limited to 'sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/MultiTableRegistry.java')
-rw-r--r-- | sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/MultiTableRegistry.java | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/MultiTableRegistry.java b/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/MultiTableRegistry.java new file mode 100644 index 0000000000..142aee5c60 --- /dev/null +++ b/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/MultiTableRegistry.java @@ -0,0 +1,105 @@ +/** + * + * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.tuscany.das.rdb.graphbuilder.impl; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; + +import org.apache.tuscany.das.rdb.util.DebugUtil; + +import commonj.sdo.DataObject; + + + +/** + * + * Used to store and look up table objects based on primary key + * This could be a lot more efficient if we could use LinkedHashMap from JDK 1.4 + */ +public class MultiTableRegistry implements TableRegistry { + + private HashMap tableNameMap; + private HashMap tableValueMap; + private boolean debug = false; + + + public MultiTableRegistry() { + tableNameMap = new HashMap(); + tableValueMap = new HashMap(); + } + + + + /** + * Get the table with the specified name and primary key + * @param tableName + * @param primaryKey + * @return EDataObject + */ + public DataObject get(String tableName, List primaryKey) { + if ( debug ) { + DebugUtil.debugln(getClass(), debug, "Looking for table " + tableName + " with PK " + primaryKey); + DebugUtil.debugln(getClass(), debug, ("\tReturning " + getPkMap(tableName).get(primaryKey))); + } + return (DataObject) getPkMap(tableName).get(primaryKey); + } + + /** + * Add the table with the specified name and primary key + * @param tableName + * @param primaryKey + * @param value + */ + public void put(String tableName, List primaryKey, DataObject value) { + if ( getPkMap(tableName).put(primaryKey, value) == null ) + getCreateValueList(tableName).add(value); + } + + /** + * Get the HashMap that contains the primary key to table object + * mappings. + * @param tableName + * @return HashMap + */ + private HashMap getPkMap(String tableName) { + HashMap pkMap = (HashMap)tableNameMap.get(tableName); + if ( pkMap == null ) { + pkMap = new HashMap(); + tableNameMap.put(tableName, pkMap); + } + return pkMap; + } + + private List getCreateValueList(String tableName) { + List values = (List) tableValueMap.get(tableName); + if ( values == null ) { + values = new ArrayList(); + tableValueMap.put(tableName, values); + } + return values; + } + + + + public boolean contains(String tableName, List primaryKey) { + return get(tableName,primaryKey) == null ? false : true; + + } + + +}
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