libraries/sql-generator/src/main/java/org/apache/polygene/library/sql/generator/implementation/transformation/sqlite/SQLiteProcessor.java

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 *  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
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 *  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
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package org.apache.polygene.library.sql.generator.implementation.transformation.sqlite;

import java.util.HashMap;
import java.util.Map;
import org.apache.polygene.library.sql.generator.Typeable;
import org.apache.polygene.library.sql.generator.grammar.common.TableNameDirect;
import org.apache.polygene.library.sql.generator.grammar.common.TableNameFunction;
import org.apache.polygene.library.sql.generator.grammar.common.datatypes.BigInt;
import org.apache.polygene.library.sql.generator.grammar.common.datatypes.SQLInteger;
import org.apache.polygene.library.sql.generator.grammar.common.datatypes.SmallInt;
import org.apache.polygene.library.sql.generator.grammar.definition.schema.SchemaDefinition;
import org.apache.polygene.library.sql.generator.grammar.definition.table.ColumnDefinition;
import org.apache.polygene.library.sql.generator.grammar.definition.table.TableElementList;
import org.apache.polygene.library.sql.generator.grammar.manipulation.DropSchemaStatement;
import org.apache.polygene.library.sql.generator.implementation.transformation.DefaultSQLProcessor;
import org.apache.polygene.library.sql.generator.implementation.transformation.NoOpProcessor;
import org.apache.polygene.library.sql.generator.implementation.transformation.mysql.TableProcessing;
import org.apache.polygene.library.sql.generator.implementation.transformation.spi.SQLProcessor;
import org.apache.polygene.library.sql.generator.implementation.transformation.sqlite.DefinitionProcessing.SQLListeTableElementListProcessor;
import org.apache.polygene.library.sql.generator.implementation.transformation.sqlite.DefinitionProcessing.SQLiteColumnDefinitionProcessor;
import org.apache.polygene.library.sql.generator.implementation.transformation.sqlite.DefinitionProcessing.SQLiteSchemaDefinitionProcessor;
import org.apache.polygene.library.sql.generator.vendor.SQLVendor;

public class SQLiteProcessor
    extends DefaultSQLProcessor
{

    private static final Map<Class<? extends Typeable<?>>, SQLProcessor> _defaultProcessors;

    static
    {
        Map<Class<? extends Typeable<?>>, SQLProcessor> processors = new HashMap<Class<? extends Typeable<?>>, SQLProcessor>(
            DefaultSQLProcessor.getDefaultProcessors() );

        // SQLite does not understand schema-qualified table names (or anything related to schemas)
        processors.put( TableNameDirect.class, new TableProcessing.MySQLTableNameDirectProcessor() );
        processors.put( TableNameFunction.class, new TableProcessing.MySQLTableNameFunctionProcessor() );

        // Only process schema elements from schema definition, and ignore drop schema statements
        processors.put( SchemaDefinition.class, new SQLiteSchemaDefinitionProcessor() );
        processors.put( DropSchemaStatement.class, new NoOpProcessor() );

        // SQLite MUST use INTEGER PRIMARY KEY AUTOINCREMENT type when autogenerated
        // see http://www.sqlite.org/autoinc.html

        // Override default table element list support
        processors.put( TableElementList.class, new SQLListeTableElementListProcessor() );

        // Override default column definition support
        Map<Class<?>, String> autoGenDataTypes = new HashMap<Class<?>, String>();
        autoGenDataTypes.put( BigInt.class, "INTEGER PRIMARY KEY AUTOINCREMENT" );
        autoGenDataTypes.put( SQLInteger.class, "INTEGER PRIMARY KEY AUTOINCREMENT" );
        autoGenDataTypes.put( SmallInt.class, "INTEGER PRIMARY KEY AUTOINCREMENT" );
        processors.put( ColumnDefinition.class, new SQLiteColumnDefinitionProcessor( autoGenDataTypes ) );

        _defaultProcessors = processors;
    }

    public SQLiteProcessor( SQLVendor vendor )
    {
        super( vendor, _defaultProcessors );
    }
}