diff options
Diffstat (limited to 'das-java/tags/1.0-incubating-beta1-rc1/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java')
| -rw-r--r-- | das-java/tags/1.0-incubating-beta1-rc1/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/das-java/tags/1.0-incubating-beta1-rc1/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java b/das-java/tags/1.0-incubating-beta1-rc1/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java deleted file mode 100644 index 110fd1bd38..0000000000 --- a/das-java/tags/1.0-incubating-beta1-rc1/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/DatabaseObject.java +++ /dev/null @@ -1,202 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you 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 java.util.Map; - -import org.apache.log4j.Logger; -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.config.wrapper.TableWrapper; - -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 Logger logger = Logger.getLogger(DatabaseObject.class); - - private final MappingWrapper mappingWrapper; - - private final DataObject dataObject; - - private Property parentReference; - - private Map 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(); - if (this.logger.isDebugEnabled()) { - this.logger.debug("Initializing relationship: " + r.getName()); - this.logger.debug("r.getForeignKeyTable():"+r.getForeignKeyTable()); - this.logger.debug("getTypeName():"+getTypeName()); - } - - 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); - if (this.logger.isDebugEnabled()) { - this.logger.debug("Putting key pair: " + pair.getPrimaryKeyColumn()+","+pair.getForeignKeyColumn()); - } - } - } - } - } - } - - 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); - } - - //JIRA-952 - Table tbl = this.mappingWrapper.getTable(r.getPrimaryKeyTable()); - Property parentRef = null; - if(tbl == null){ - //this is case when config file is not present and - //ConfigHelper helper = new ConfigHelper(); is used - parentRef = getParentReference(r.getPrimaryKeyTable()); - } - else{ - //other cases, its better to use typeName as r.getPrimaryKeyTable() - //gives tableName and tableName and typeName can be different - //and SDO looks for typeName and not tableName. - parentRef = getParentReference((new TableWrapper(tbl)).getTypeName()); - } - - 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; - } - - //JIRA-952 - public String getTableName() { - if (mappingWrapper.getConfig() != null) { - - if(mappingWrapper.getConfig().isDatabaseSchemaNameSupported()){ - if (this.logger.isDebugEnabled()) { - this.logger.debug("DatabaseObject.getTableName:(schemaName.tableName) " + - mappingWrapper.getTableByTypeName(getTypeName()).getSchemaName()+"."+ - mappingWrapper.getTableByTypeName(getTypeName()).getTableName()); - } - - return (mappingWrapper.getTableByTypeName(getTypeName()).getSchemaName()+"."+ - mappingWrapper.getTableByTypeName(getTypeName()).getTableName()); - } - else{ - if (this.logger.isDebugEnabled()) { - this.logger.debug("DatabaseObject.getTableName: " + mappingWrapper.getTableByTypeName(getTypeName()).getTableName()); - } - - return mappingWrapper.getTableByTypeName(getTypeName()).getTableName(); - } - } - return null; - } - - public String getTypeName() { - if (this.logger.isDebugEnabled()) { - this.logger.debug("DatabaseObject.getTypeName: " + dataObject.getType().getName()); - } - 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(); - } - -} |