| /* |
| * 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.sql; |
| |
| import java.sql.Connection; |
| import java.sql.DatabaseMetaData; |
| import java.sql.SQLException; |
| import java.sql.Types; |
| import java.util.Locale; |
| |
| import org.apache.openjpa.jdbc.identifier.DBIdentifier; |
| import org.apache.openjpa.jdbc.identifier.DBIdentifier.DBIdentifierType; |
| import org.apache.openjpa.jdbc.kernel.exps.FilterValue; |
| import org.apache.openjpa.jdbc.schema.Column; |
| import org.apache.openjpa.jdbc.schema.Index; |
| |
| /** |
| * Dictionary for Pointbase Embedded. |
| */ |
| public class PointbaseDictionary |
| extends DBDictionary { |
| |
| public PointbaseDictionary() { |
| platform = "Pointbase Embedded"; |
| supportsDeferredConstraints = false; |
| supportsMultipleNontransactionalResultSets = false; |
| requiresAliasForSubselect = true; |
| |
| supportsLockingWithDistinctClause = false; |
| supportsLockingWithMultipleTables = false; |
| supportsLockingWithDistinctClause = false; |
| |
| bitTypeName = "TINYINT"; |
| blobTypeName = "BLOB(1M)"; |
| longVarbinaryTypeName = "BLOB(1M)"; |
| charTypeName = "CHARACTER{0}"; |
| clobTypeName = "CLOB(1M)"; |
| doubleTypeName = "DOUBLE PRECISION"; |
| floatTypeName = "FLOAT"; |
| bigintTypeName = "BIGINT"; |
| integerTypeName = "INTEGER"; |
| realTypeName = "REAL"; |
| smallintTypeName = "SMALLINT"; |
| tinyintTypeName = "TINYINT"; |
| |
| // there is no build-in function for getting the last generated |
| // key in Pointbase; using MAX will have to suffice |
| supportsAutoAssign = true; |
| lastGeneratedKeyQuery = "SELECT MAX({0}) FROM {1}"; |
| autoAssignTypeName = "BIGINT IDENTITY"; |
| |
| // OpenJPA-2045: NAME has been removed from common reserved words to |
| // only specific dictionaries |
| reservedWordSet.add("NAME"); |
| } |
| |
| @Override |
| public int getPreferredType(int type) { |
| switch (type) { |
| case Types.LONGVARCHAR: |
| return Types.CLOB; |
| default: |
| return super.getPreferredType(type); |
| } |
| } |
| |
| @Override |
| public Column[] getColumns(DatabaseMetaData meta, String catalog, |
| String schemaName, String tableName, String columnName, Connection conn) |
| throws SQLException { |
| return getColumns(meta, DBIdentifier.newCatalog(catalog), DBIdentifier.newSchema(schemaName), |
| DBIdentifier.newTable(tableName), DBIdentifier.newColumn(columnName), conn); |
| } |
| |
| @Override |
| public Column[] getColumns(DatabaseMetaData meta, DBIdentifier catalog, |
| DBIdentifier schemaName, DBIdentifier tableName, DBIdentifier columnName, Connection conn) |
| throws SQLException { |
| Column[] cols = super.getColumns(meta, catalog, schemaName, tableName, |
| columnName, conn); |
| |
| // pointbase reports the type for a CLOB field as VARCHAR: override it |
| for (int i = 0; cols != null && i < cols.length; i++) |
| if (cols[i].getTypeIdentifier().getName().toUpperCase(Locale.ENGLISH).startsWith("CLOB")) |
| cols[i].setType(Types.CLOB); |
| return cols; |
| } |
| |
| @Override |
| public String getFullName(Index index) { |
| return toDBName(getNamingUtil().append(DBIdentifierType.INDEX, |
| getFullIdentifier(index.getTable(), false), index.getIdentifier())); |
| } |
| |
| @Override |
| public void substring(SQLBuffer buf, FilterValue str, FilterValue start, |
| FilterValue length) { |
| // SUBSTRING in Pointbase is of the form: |
| // SELECT SUBSTRING(SOME_COLUMN FROM 1 FOR 5) |
| buf.append("SUBSTRING("); |
| str.appendTo(buf); |
| buf.append(" FROM "); |
| start.appendTo(buf); |
| if (length != null) { |
| buf.append(" FOR "); |
| length.appendTo(buf); |
| } |
| buf.append(")"); |
| } |
| |
| @Override |
| public void indexOf(SQLBuffer buf, FilterValue str, FilterValue find, |
| FilterValue start) { |
| buf.append("(POSITION("); |
| find.appendTo(buf); |
| buf.append(" IN "); |
| if (start != null) |
| substring(buf, str, start, null); |
| else |
| str.appendTo(buf); |
| buf.append(")"); |
| if (start != null) { |
| buf.append(" - 1 + "); |
| start.appendTo(buf); |
| } |
| buf.append(")"); |
| } |
| } |