| /* |
| * 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.openjpa.jdbc.meta.strats; |
| |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| |
| import org.apache.openjpa.jdbc.kernel.JDBCStore; |
| import org.apache.openjpa.jdbc.sql.DBDictionary; |
| import org.apache.openjpa.jdbc.sql.Row; |
| import org.apache.openjpa.kernel.OpenJPAStateManager; |
| import org.apache.openjpa.lib.util.Localizer; |
| import org.apache.openjpa.meta.JavaTypes; |
| import org.apache.openjpa.util.MetaDataException; |
| |
| /** |
| * Mapping for CLOB string on a dictionary that has a maximum embedded |
| * CLOB size. |
| * |
| * @author Abe White |
| * @nojavadoc |
| * @since 0.4.0 |
| */ |
| public class MaxEmbeddedClobFieldStrategy |
| extends MaxEmbeddedLobFieldStrategy { |
| |
| private static final Localizer _loc = Localizer.forPackage |
| (MaxEmbeddedClobFieldStrategy.class); |
| |
| private int _maxSize = 0; |
| |
| protected int getExpectedJavaType() { |
| return JavaTypes.STRING; |
| } |
| |
| protected void update(OpenJPAStateManager sm, Row row) |
| throws SQLException { |
| String s = sm.fetchString(field.getIndex()); |
| if (s == null || s.length() > _maxSize) |
| row.setNull(field.getColumns()[0], true); |
| else |
| row.setString(field.getColumns()[0], s); |
| } |
| |
| protected Boolean isCustom(OpenJPAStateManager sm, JDBCStore store) { |
| String s = sm.fetchString(field.getIndex()); |
| return (s != null && s.length() > _maxSize) ? null : Boolean.FALSE; |
| } |
| |
| protected void putData(OpenJPAStateManager sm, ResultSet rs, |
| DBDictionary dict) |
| throws SQLException { |
| Object clob = rs.getClob(1); |
| dict.putString(clob, sm.fetchString(field.getIndex())); |
| } |
| |
| public void map(boolean adapt) { |
| if (field.getTypeCode() != JavaTypes.STRING) |
| throw new MetaDataException(_loc.get("not-clobstring", field)); |
| super.map(adapt); |
| } |
| |
| public void initialize() { |
| DBDictionary dict = field.getMappingRepository().getDBDictionary(); |
| _maxSize = dict.maxEmbeddedClobSize; |
| } |
| } |