diff options
Diffstat (limited to 'tags/java-M1-20060518/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java')
-rw-r--r-- | tags/java-M1-20060518/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/tags/java-M1-20060518/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java b/tags/java-M1-20060518/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java deleted file mode 100644 index eaf56a6c2c..0000000000 --- a/tags/java-M1-20060518/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java +++ /dev/null @@ -1,148 +0,0 @@ -/** - * - * 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.impl; - -import java.util.HashMap; -import java.util.Iterator; -import java.util.List; - -import org.apache.tuscany.das.rdb.config.Column; -import org.apache.tuscany.das.rdb.config.Config; -import org.apache.tuscany.das.rdb.config.KeyPair; -import org.apache.tuscany.das.rdb.config.Relationship; -import org.apache.tuscany.das.rdb.config.Table; -import org.apache.tuscany.das.rdb.config.wrapper.MappingWrapper; -import org.apache.tuscany.das.rdb.util.DebugUtil; - -import commonj.sdo.DataObject; -import commonj.sdo.Property; - -/** - * DatabaseObject wraps DataObject. If a field is an FK field, it will return - * the value from the parent. - * - * - */ -public class DatabaseObject { - - private final MappingWrapper mappingWrapper; - - private final DataObject dataObject; - - private Property parentReference; - - private static final boolean debug = false; - - private HashMap keyMappings = new HashMap(); - - public DatabaseObject(Config model, DataObject changedObject) { - this.mappingWrapper = new MappingWrapper(model); - this.dataObject = changedObject; - initialize(); - } - - // Initialize Key Mappings - private void initialize() { - if (mappingWrapper.getConfig() != null) { - List relationships = mappingWrapper.getConfig().getRelationship(); - Iterator i = relationships.iterator(); - while (i.hasNext()) { - Relationship r = (Relationship) i.next(); - DebugUtil.debugln(getClass(), debug, "Initializing relationship: " + r.getName()); - if (r.getForeignKeyTable().equals(getTypeName())) { - List pairs = r.getKeyPair(); - Iterator iter = pairs.iterator(); - while (iter.hasNext()) { - KeyPair pair = (KeyPair) iter.next(); - keyMappings.put(pair.getForeignKeyColumn(), r); - } - } - } - } - } - - public Object get(String parameter) { - - if (isPartOfPrimaryKey(parameter)) - return dataObject.get(parameter); - - Relationship r = (Relationship) keyMappings.get(parameter); - if (r == null) - return dataObject.get(parameter); - - Property parentRef = getParentReference(r.getPrimaryKeyTable()); - DataObject parent = dataObject.getDataObject(parentRef); - if (parent == null) - return null; - String parentKey = getParentKey(r, parameter); - return parent.get(parentKey); - - } - - private String getParentKey(Relationship r, String parameter) { - List keyPairs = r.getKeyPair(); - Iterator i = keyPairs.iterator(); - while (i.hasNext()) { - KeyPair pair = (KeyPair) i.next(); - if (pair.getForeignKeyColumn().equals(parameter)) - return pair.getPrimaryKeyColumn(); - } - return null; - } - - public Property getParentReference(String parentName) { - if (this.parentReference == null) { - - Iterator i = dataObject.getType().getProperties().iterator(); - while (i.hasNext()) { - Property ref = (Property) i.next(); - if ((!ref.getType().isDataType()) && (ref.getType().getName().equals(parentName))) { - this.parentReference = ref; - } - } - } - return this.parentReference; - } - - public String getTableName() { - if (mappingWrapper.getConfig() != null) - return mappingWrapper.getTableByPropertyName(getTypeName()).getName(); - else - return null; - } - - public String getTypeName() { - return dataObject.getType().getName(); - } - - public void setPropagatedID(String propagatedID, int id) { - dataObject.setInt(propagatedID, id); - } - - private boolean isPartOfPrimaryKey(String parameter) { - if (mappingWrapper.getConfig() == null) - return false; - Table t = mappingWrapper.getTable(getTableName()); - if (t == null) - return false; - Column c = mappingWrapper.getColumnByPropertyName(t, parameter); - if (c == null) - return false; - return c.isPrimaryKey(); - } - -} |