Package oracle.toplink.essentials.platform.database

Source Code of oracle.toplink.essentials.platform.database.SQLAnyWherePlatform

/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* // Copyright (c) 1998, 2007, Oracle. All rights reserved.
*
* Portions Copyright 2007 Markus KARG (markus-karg@users.sourceforge.net)
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License").  You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code.  If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
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* only the GPL Version 2, indicate your decision by adding "[Contributor]
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package oracle.toplink.essentials.platform.database;

import java.io.IOException;
import java.io.Writer;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Date;
import java.sql.Time;
import java.sql.Timestamp;
import java.sql.Types;
import java.util.Hashtable;

import oracle.toplink.essentials.exceptions.ValidationException;
import oracle.toplink.essentials.expressions.ExpressionOperator;
import oracle.toplink.essentials.internal.databaseaccess.DatabasePlatform;
import oracle.toplink.essentials.internal.databaseaccess.FieldTypeDefinition;
import oracle.toplink.essentials.internal.helper.ClassConstants;
import oracle.toplink.essentials.internal.helper.DatabaseTable;
import oracle.toplink.essentials.queryframework.ValueReadQuery;

/**
* Provides SQL Anywhere specific behaviour.
*
* @author Markus KARG (markus-karg@users.sourceforge.net)
*/
@SuppressWarnings("serial")
public final class SQLAnyWherePlatform extends DatabasePlatform {

  private static final ExpressionOperator createCurrentDateOperator() {
    return ExpressionOperator.simpleFunctionNoParentheses(ExpressionOperator.CurrentDate, "CURRENT DATE");
  }

  private static final ExpressionOperator createCurrentTimeOperator() {
    return ExpressionOperator.simpleFunctionNoParentheses(ExpressionOperator.CurrentTime, "CURRENT TIME");
  }

  private static final ExpressionOperator createLocate2Operator() {
    return ExpressionOperator.simpleThreeArgumentFunction(ExpressionOperator.Locate2, "LOCATE");
  }

  private static final ExpressionOperator createLocateOperator() {
    return ExpressionOperator.simpleTwoArgumentFunction(ExpressionOperator.Locate, "LOCATE");
  }

    private static final ExpressionOperator createConcatOperator() {
      return ExpressionOperator.simpleLogicalNoParens(ExpressionOperator.Concat, "||");
    }

  @Override
  protected final Hashtable buildFieldTypes() {
    final Hashtable<Class, FieldTypeDefinition> fieldTypeMapping = new Hashtable<Class, FieldTypeDefinition>();
    fieldTypeMapping.put(Boolean.class, new FieldTypeDefinition("BIT", false));
    fieldTypeMapping.put(Integer.class, new FieldTypeDefinition("INTEGER", false));
    fieldTypeMapping.put(Long.class, new FieldTypeDefinition("BIGINT", false));
    fieldTypeMapping.put(Float.class, new FieldTypeDefinition("REAL", false));
    fieldTypeMapping.put(Double.class, new FieldTypeDefinition("DOUBLE", false));
    fieldTypeMapping.put(Short.class, new FieldTypeDefinition("SMALLINT", false));
    fieldTypeMapping.put(Byte.class, new FieldTypeDefinition("SMALLINT", false));
    fieldTypeMapping.put(BigInteger.class, new FieldTypeDefinition("BIGINT", false));
    fieldTypeMapping.put(BigDecimal.class, new FieldTypeDefinition("DOUBLE", false));
    fieldTypeMapping.put(Number.class, new FieldTypeDefinition("DOUBLE", false));
    fieldTypeMapping.put(String.class, new FieldTypeDefinition("VARCHAR"));
    fieldTypeMapping.put(Character.class, new FieldTypeDefinition("CHAR"));
    fieldTypeMapping.put(Byte[].class, new FieldTypeDefinition("LONG BINARY", false));
    fieldTypeMapping.put(Character[].class, new FieldTypeDefinition("LONG VARCHAR", false));
    fieldTypeMapping.put(byte[].class, new FieldTypeDefinition("LONG BINARY", false));
    fieldTypeMapping.put(char[].class, new FieldTypeDefinition("LONG VARCHAR", false));
    fieldTypeMapping.put(Blob.class, new FieldTypeDefinition("LONG BINARY"false));
    fieldTypeMapping.put(Clob.class, new FieldTypeDefinition("LONG VARCHAR", false));
    fieldTypeMapping.put(Date.class, new FieldTypeDefinition("DATE", false));
    fieldTypeMapping.put(Time.class, new FieldTypeDefinition("TIME", false));
    fieldTypeMapping.put(Timestamp.class, new FieldTypeDefinition("TIMESTAMP", false));
    return fieldTypeMapping;
  }

  @Override
    public final ValueReadQuery buildSelectQueryForIdentity() {
    return new ValueReadQuery("SELECT @@identity");
  }

  @Override
  protected final String getCreateTempTableSqlPrefix() {
    return "DECLARE TEMPORARY TABLE ";
  }

  @Override
  public final int getJDBCType(final Class javaType) {
    return javaType == ClassConstants.BLOB ? Types.LONGVARBINARY :  javaType == ClassConstants.CLOB ? Types.LONGVARCHAR : super.getJDBCType(javaType);
  }

  @Override
  public final int getMaxFieldNameSize() {
    return 128;
  }

  @Override
  public final DatabaseTable getTempTableForTable(final DatabaseTable table) {
    return new DatabaseTable("$" + table.getName(), table.getTableQualifier());
  }

  @Override
  protected final void initializePlatformOperators() {
    super.initializePlatformOperators();
    this.addOperator(SQLAnyWherePlatform.createLocateOperator());
    this.addOperator(SQLAnyWherePlatform.createLocate2Operator());
    this.addOperator(SQLAnyWherePlatform.createCurrentDateOperator());
    this.addOperator(SQLAnyWherePlatform.createCurrentTimeOperator());
    this.addOperator(SQLAnyWherePlatform.createConcatOperator());
        this.addOperator(ExpressionOperator.charLength());
    }

  @Override
  public final boolean isSQLAnywhere() {
    return true;
  }

  @Override
  public final void printFieldIdentityClause(final Writer writer) throws ValidationException {
    try {
      writer.write(" DEFAULT AUTOINCREMENT");
    } catch (final IOException ioException) {
      throw ValidationException.fileError(ioException);
    }
  }

  @Override
  public final void printFieldNullClause(final Writer writer) throws ValidationException {
    try {
      writer.write(" NULL");
    } catch (final IOException ioException) {
      throw ValidationException.fileError(ioException);
    }
  }

  @Override
  public final boolean supportsLocalTempTables() {
    return true;
  }

  @Override
  public final boolean supportsIdentity() {
    return true;
  }

  @Override
  public final boolean supportsStoredFunctions() {
    return true;
  }

}
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