1 files changed, 105 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-20060522/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/MultiTableRegistry.java b/sca-java-1.x/tags/java-M1-20060522/java/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-M1-20060522/java/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;
+		
+	}
+	
+
+}
+\ No newline at end of file