/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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.seasar.extension.jdbc.gen.internal.dialect;
import java.math.BigDecimal;
import java.sql.Types;
import javax.persistence.GenerationType;
import org.seasar.extension.jdbc.gen.internal.sqltype.BinaryType;
import org.seasar.extension.jdbc.gen.internal.sqltype.BlobType;
import org.seasar.extension.jdbc.gen.internal.sqltype.BooleanType;
import org.seasar.extension.jdbc.gen.internal.sqltype.ClobType;
import org.seasar.extension.jdbc.gen.internal.sqltype.DecimalType;
import org.seasar.extension.jdbc.gen.internal.sqltype.FloatType;
/**
* Derbyの方言を扱うクラスです。
*
* @author taedium
*/
public class DerbyGenDialect extends StandardGenDialect {
/** テーブルが見つからないことを示すSQLステート */
protected static String TABLE_NOT_FOUND_SQL_STATE = "42X05";
/** カラムが見つからないことを示すSQLステート */
protected static String COLUMN_NOT_FOUND_SQL_STATE = "42X04";
/**
* インスタンスを構築します。
*/
public DerbyGenDialect() {
sqlTypeMap
.put(Types.BINARY, new BinaryType("varchar($l) for bit data"));
sqlTypeMap.put(Types.BLOB, new BlobType("blob($l)"));
sqlTypeMap.put(Types.BOOLEAN, new BooleanType("smallint"));
sqlTypeMap.put(Types.CLOB, new ClobType("clob($l)"));
sqlTypeMap.put(Types.DECIMAL, new DecimalType("decimal($p,$s)"));
sqlTypeMap.put(Types.FLOAT, new FloatType("real"));
columnTypeMap.put("blob", DerbyColumnType.BLOB);
columnTypeMap.put("char () for bit data", DerbyColumnType.CHAR_BIT);
columnTypeMap.put("clob", DerbyColumnType.CLOB);
columnTypeMap.put("decimal", DerbyColumnType.DECIMAL);
columnTypeMap.put("long varchar for bit data",
DerbyColumnType.LONGVARCHAR_BIT);
columnTypeMap.put("long varchar", DerbyColumnType.LONGVARCHAR);
columnTypeMap.put("varchar () for bit data",
DerbyColumnType.VARCHAR_BIT);
}
@Override
public String getName() {
return "derby";
}
@Override
public GenerationType getDefaultGenerationType() {
return GenerationType.IDENTITY;
}
@Override
public String getIdentityColumnDefinition() {
return "not null generated by default as identity";
}
@Override
public boolean isTableNotFound(Throwable throwable) {
String sqlState = getSQLState(throwable);
return TABLE_NOT_FOUND_SQL_STATE.equals(sqlState);
}
@Override
public boolean isColumnNotFound(Throwable throwable) {
String sqlState = getSQLState(throwable);
return COLUMN_NOT_FOUND_SQL_STATE.equals(sqlState);
}
@Override
public boolean supportsIdentityInsert() {
return true;
}
@Override
public boolean supportsIdentity() {
return true;
}
/**
* Derby用の{@link ColumnType}の実装です。
*
* @author taedium
*/
public static class DerbyColumnType extends StandardColumnType {
private static DerbyColumnType BLOB = new DerbyColumnType("blob($l)",
byte[].class);
private static DerbyColumnType CHAR_BIT = new DerbyColumnType(
"char($l) for bit data", byte[].class);
private static DerbyColumnType CLOB = new DerbyColumnType("clob($l)",
String.class);
private static DerbyColumnType DECIMAL = new DerbyColumnType(
"decimal($p,$s)", BigDecimal.class);
private static DerbyColumnType LONGVARCHAR_BIT = new DerbyColumnType(
"long varchar for bit data", byte[].class);
private static DerbyColumnType LONGVARCHAR = new DerbyColumnType(
"long varchar", String.class);
private static DerbyColumnType VARCHAR_BIT = new DerbyColumnType(
"varchar($l) for bit data", byte[].class);
/**
* インスタンスを構築します。
*
* @param dataType
* データ型
* @param attributeClass
* 属性のクラス
*/
public DerbyColumnType(String dataType, Class<?> attributeClass) {
super(dataType, attributeClass);
}
/**
* インスタンスを構築します。
*
* @param dataType
* データ型
* @param attributeClass
* 属性のクラス
* @param lob
* LOBの場合{@code true}
*/
public DerbyColumnType(String dataType, Class<?> attributeClass,
boolean lob) {
super(dataType, attributeClass, lob);
}
}
}