| package org.apache.ddlutils.dynabean; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.commons.beanutils.BasicDynaClass; |
| import org.apache.commons.beanutils.DynaProperty; |
| import org.apache.ddlutils.model.Table; |
| |
| /** |
| * SqlDynaClass is a DynaClass which is associated with a persistent |
| * Table in a Database. |
| * |
| * @version $Revision$ |
| */ |
| public class SqlDynaClass extends BasicDynaClass |
| { |
| /** Unique ID for serializaion purposes. */ |
| private static final long serialVersionUID = -5768155698352911245L; |
| |
| /** The table for which this dyna class is defined. */ |
| private Table _table; |
| /** The primary key dyna properties. */ |
| private SqlDynaProperty[] _primaryKeyProperties; |
| /** The non-primary key dyna properties. */ |
| private SqlDynaProperty[] _nonPrimaryKeyProperties; |
| |
| /** |
| * Factory method for creating and initializing a new dyna class instance |
| * for the given table. |
| * |
| * @param table The table |
| * @return The dyna class for the table |
| */ |
| public static SqlDynaClass newInstance(Table table) |
| { |
| List properties = new ArrayList(); |
| |
| for (int idx = 0; idx < table.getColumnCount(); idx++) |
| { |
| properties.add(new SqlDynaProperty(table.getColumn(idx))); |
| } |
| |
| SqlDynaProperty[] array = new SqlDynaProperty[properties.size()]; |
| |
| properties.toArray(array); |
| return new SqlDynaClass(table, array); |
| } |
| |
| /** |
| * Creates a new dyna class instance for the given table that has the given properties. |
| * |
| * @param table The table |
| * @param properties The dyna properties |
| */ |
| public SqlDynaClass(Table table, SqlDynaProperty[] properties) |
| { |
| super(table.getName(), SqlDynaBean.class, properties); |
| _table = table; |
| } |
| |
| /** |
| * Returns the table for which this dyna class is defined. |
| * |
| * @return The table |
| */ |
| public Table getTable() |
| { |
| return _table; |
| } |
| |
| // Helper methods |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Returns the table name for which this dyna class is defined. |
| * |
| * @return The table name |
| */ |
| public String getTableName() |
| { |
| return getTable().getName(); |
| } |
| |
| /** |
| * Returns the properties of this dyna class. |
| * |
| * @return The properties |
| */ |
| public SqlDynaProperty[] getSqlDynaProperties() |
| { |
| return (SqlDynaProperty[])getDynaProperties(); |
| } |
| |
| /** |
| * Returns the properties for the primary keys of the corresponding table. |
| * |
| * @return The properties |
| */ |
| public SqlDynaProperty[] getPrimaryKeyProperties() |
| { |
| if (_primaryKeyProperties == null) |
| { |
| initPrimaryKeys(); |
| } |
| return _primaryKeyProperties; |
| } |
| |
| /** |
| * Returns the properties for the non-primary keys of the corresponding table. |
| * |
| * @return The properties |
| */ |
| public SqlDynaProperty[] getNonPrimaryKeyProperties() |
| { |
| if (_nonPrimaryKeyProperties == null) |
| { |
| initPrimaryKeys(); |
| } |
| return _nonPrimaryKeyProperties; |
| } |
| |
| // Implementation methods |
| //------------------------------------------------------------------------- |
| |
| /** |
| * Initializes the primary key and non primary key property arrays. |
| */ |
| protected void initPrimaryKeys() |
| { |
| List pkProps = new ArrayList(); |
| List nonPkProps = new ArrayList(); |
| DynaProperty[] properties = getDynaProperties(); |
| |
| for (int idx = 0; idx < properties.length; idx++) |
| { |
| if (properties[idx] instanceof SqlDynaProperty) |
| { |
| SqlDynaProperty sqlProperty = (SqlDynaProperty)properties[idx]; |
| |
| if (sqlProperty.isPrimaryKey()) |
| { |
| pkProps.add(sqlProperty); |
| } |
| else |
| { |
| nonPkProps.add(sqlProperty); |
| } |
| } |
| } |
| _primaryKeyProperties = (SqlDynaProperty[])pkProps.toArray(new SqlDynaProperty[pkProps.size()]); |
| _nonPrimaryKeyProperties = (SqlDynaProperty[])nonPkProps.toArray(new SqlDynaProperty[nonPkProps.size()]); |
| } |
| } |