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h2/src/tools/com/caucho/jdbc/H2MetaData.java.txt

+package com.caucho.jdbc;
+
+import com.caucho.util.Log;
+
+import javax.sql.DataSource;
+import java.util.logging.Logger;
+
+/**
+ * Metadata for the H2 database.
+ * For details, see 
+ * http://wondering.ru/java/H2ejb3onResinSupport1.0.zip
+ */
+public class H2MetaData extends JdbcMetaData {
+    private static final Logger log = Log.open(H2MetaData.class);
+
+    protected H2MetaData(DataSource ds) {
+        super(ds);
+    }
+
+    /**
+    * Returns the blob type.
+    */
+    public String getBlobType(){
+        return "BLOB";
+    }
+
+    /**
+    * Returns the long type.
+    */
+    public String getLongType() {
+        return "BIGINT";
+    }
+
+    /**
+    * Returns true if identity is supported.
+    */
+    public boolean supportsIdentity() {
+        return true;
+    }
+
+    /**
+    * Returns the identity property
+    */
+    public String createIdentitySQL(String sqlType) {
+        return "IDENTITY";
+    }
+}

h2/src/tools/com/caucho/jdbc/JdbcMetaData.java.txt

+/*
+ * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
+ *
+ * This file is part of Resin(R) Open Source
+ *
+ * Each copy or derived work must preserve the copyright notice and this
+ * notice unmodified.
+ *
+ * Resin Open Source is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Resin Open Source is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
+ * of NON-INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Resin Open Source; if not, write to the
+ *
+ *   Free Software Foundation, Inc.
+ *   59 Temple Place, Suite 330
+ *   Boston, MA 02111-1307  USA
+ *
+ * @author Scott Ferguson
+ */
+
+package com.caucho.jdbc;
+
+import com.caucho.util.L10N;
+import com.caucho.util.Log;
+
+import javax.sql.DataSource;
+import java.sql.*;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Abstract way of grabbing data from the JDBC connection.
+ */
+public class JdbcMetaData {
+  private static final L10N L = new L10N(JdbcMetaData.class);
+  private static final Logger log = Log.open(JdbcMetaData.class);
+
+  private DataSource _ds;
+
+  /**
+   * Create a new JDBC backing store.
+   */
+  protected JdbcMetaData(DataSource ds)
+  {
+    _ds = ds;
+  }
+
+  /**
+   * Create based on the connection.
+   */
+  public static JdbcMetaData create(DataSource ds)
+  {
+    Connection conn = null;
+
+    try {
+      conn = ds.getConnection();
+
+      DatabaseMetaData md = conn.getMetaData();
+
+      String name = md.getDatabaseProductName();
+
+      log.fine(L.l("Database '{0}' metadata.", name));
+
+      if ("H2".equalsIgnoreCase(name))
+    return new H2MetaData(ds);
+      else if ("oracle".equalsIgnoreCase(name))
+    return new OracleMetaData(ds);
+      else if ("resin".equalsIgnoreCase(name))
+    return new ResinMetaData(ds);
+      else if ("postgres".equalsIgnoreCase(name) ||
+           "PostgreSQL".equalsIgnoreCase(name))
+    return new PostgresMetaData(ds);
+      else if ("mysql".equalsIgnoreCase(name))
+    return new MysqlMetaData(ds);
+      else if ("Microsoft SQL Server".equalsIgnoreCase(name))
+    return new SqlServerMetaData(ds);
+      else {
+    log.fine(name + " is an unknown database type");
+    return new JdbcMetaData(ds);
+      }
+    } catch (SQLException e) {
+      log.log(Level.FINE, e.toString(), e);
+      return new JdbcMetaData(ds);
+    } finally {
+      try {
+    if (conn != null) conn.close();
+      } catch (SQLException e) {
+      }
+    }
+  }
+
+  /**
+   * Returns the database name.
+   */
+  public String getDatabaseName()
+  {
+    Connection conn = null;
+
+    try {
+      conn = getConnection();
+
+      DatabaseMetaData md = conn.getMetaData();
+
+      return md.getDatabaseProductName();
+    } catch (SQLException e) {
+      log.log(Level.WARNING, e.toString(), e);
+      return "unknown";
+    } finally {
+      try {
+    if (conn != null) conn.close();
+      } catch (SQLException e) {
+      }
+    }
+  }
+
+  /**
+   * Returns the blob type.
+   */
+  public String getBlobType()
+  {
+    Connection conn = null;
+
+    try {
+      conn = getConnection();
+
+      DatabaseMetaData md = conn.getMetaData();
+      ResultSet rs;
+
+      rs = md.getTypeInfo();
+      try {
+    while (rs.next()) {
+      if (rs.getShort("DATA_TYPE") == Types.BLOB) {
+        return rs.getString("TYPE_NAME");
+      }
+    }
+      } finally {
+    rs.close();
+      }
+
+      rs = md.getTypeInfo();
+      try {
+        while (rs.next()) {
+          int dataType = rs.getShort("DATA_TYPE");
+
+          if (rs.getShort("DATA_TYPE") == Types.LONGVARBINARY) {
+            return rs.getString("TYPE_NAME");
+          }
+        }
+      } finally {
+        rs.close();
+      }
+
+      rs = md.getTypeInfo();
+      try {
+        while (rs.next()) {
+          if (rs.getShort("DATA_TYPE") == Types.BINARY) {
+            return rs.getString("TYPE_NAME");
+          }
+        }
+      } finally {
+        rs.close();
+      }
+
+      rs = md.getTypeInfo();
+      try {
+    while (rs.next()) {
+      if (rs.getShort("DATA_TYPE") == Types.VARBINARY) {
+        return rs.getString("TYPE_NAME");
+      }
+    }
+      } finally {
+    rs.close();
+      }
+    } catch (SQLException e) {
+      log.log(Level.FINE, e.toString(), e);
+    } finally {
+      try {
+    if (conn != null)
+      conn.close();
+      } catch (Exception e) {
+      }
+    }
+
+    return null;
+  }
+
+  /**
+   * Returns the long type.
+   */
+  public String getLongType()
+  {
+    Connection conn = null;
+
+    try {
+      conn = getConnection();
+
+      DatabaseMetaData md = conn.getMetaData();
+      ResultSet rs;
+
+      rs = md.getTypeInfo();
+      try {
+    while (rs.next()) {
+      if (rs.getShort("DATA_TYPE") == Types.BIGINT) {
+        return rs.getString("TYPE_NAME");
+      }
+    }
+      } finally {
+    rs.close();
+      }
+    } catch (SQLException e) {
+      log.log(Level.FINE, e.toString(), e);
+    } finally {
+      try {
+    if (conn != null) conn.close();
+      } catch (SQLException e) {
+      }
+    }
+
+    return null;
+  }
+
+  /**
+   * Returns true if identity is supported.
+   */
+  public boolean supportsIdentity()
+  {
+    return false;
+  }
+
+  /**
+   * Returns the identity property
+   */
+  public String createIdentitySQL(String sqlType)
+  {
+    throw new UnsupportedOperationException(getClass().getName());
+  }
+
+  /**
+   * Returns true if sequences are supported.
+   */
+  public boolean supportsSequences()
+  {
+    return false;
+  }
+
+  /**
+   * Returns a sequence select expression.
+   */
+  public String createSequenceSQL(String name, int size)
+  {
+    throw new UnsupportedOperationException(getClass().getName());
+  }
+
+  /**
+   * Returns a sequence select expression.
+   */
+  public String selectSequenceSQL(String name)
+  {
+    throw new UnsupportedOperationException(getClass().getName());
+  }
+
+  /**
+   * Returns a sequence select expression.
+   */
+  public String testSequenceSQL(String name)
+  {
+    return selectSequenceSQL(name) + " WHERE 1=0";
+  }
+
+  /**
+   * Returns the code to test for a boolean value for a term.
+   */
+  public String generateBoolean(String term)
+  {
+    return term;
+  }
+
+  /**
+   * Returns a limit.
+   */
+  public String limit(String sql, int max)
+  {
+    return sql;
+  }
+  /**
+   * New version to Return SQL for the table with the given
+   * SQL type.  Takes, length, precision and scale.
+   */
+  public String getCreateColumnSQL(int sqlType, int length, int precision, int scale)
+  {
+    String type = null;
+
+    switch (sqlType) {
+    case Types.BOOLEAN:
+      type = getCreateColumnSQLImpl(sqlType, length, precision, scale);
+      if (type == null)
+        type = getCreateColumnSQLImpl(Types.BIT, length, precision, scale);
+      break;
+
+    case Types.DATE:
+      type = getCreateColumnSQLImpl(sqlType, length, precision, scale);
+      if (type == null)
+    type = getCreateColumnSQLImpl(Types.TIMESTAMP, length, precision, scale);
+      break;
+
+    case Types.TIME:
+      type = getCreateColumnSQLImpl(sqlType, length, precision, scale);
+      if (type == null)
+    type = getCreateColumnSQLImpl(Types.TIMESTAMP, length, precision, scale);
+      break;
+
+    case Types.DOUBLE:
+      type = getCreateColumnSQLImpl(Types.DOUBLE, length, precision, scale);
+      break;
+
+    case Types.NUMERIC:
+        type = getCreateColumnSQLImpl(Types.NUMERIC, length, precision, scale);
+        break;
+
+    default:
+      type = getCreateColumnSQLImpl(sqlType, length, precision, scale);
+      break;
+    }
+
+    if (type == null)
+      type = getDefaultCreateTableSQL(sqlType, length, precision, scale);
+
+    return type;
+  }
+
+  /**
+   * Returns the SQL for the table with the given SQL type.
+   */
+  protected String getCreateColumnSQLImpl(int sqlType, int length, int precision, int scale)
+  {
+    Connection conn = null;
+
+    try {
+      conn = getConnection();
+
+      DatabaseMetaData md = conn.getMetaData();
+      ResultSet rs;
+
+      rs = md.getTypeInfo();
+
+      try {
+    while (rs.next()) {
+      if (rs.getShort("DATA_TYPE") == sqlType) {
+        String typeName = rs.getString("TYPE_NAME");
+        String params = rs.getString("CREATE_PARAMS");
+
+        if (params == null || params.equals(""))
+          return typeName;
+        else if (params.startsWith("(M)")) {
+          if (length > 0)
+        return typeName + "(" + length + ")";
+          else
+        return typeName;
+        }
+        else if (params.startsWith("(M,D)") || params.equals("precision,scale")) {
+              if (precision > 0) {
+                typeName += "(" + precision;
+                if (scale > 0) {
+                  typeName += "," + scale;
+                }
+                typeName += ")";
+              }
+          return typeName;
+        }
+        else if (params.startsWith("(")) {
+          int tail = params.indexOf(')');
+
+          if (tail > 0) {
+        String value = params.substring(1, tail);
+        boolean isConstant = true;
+
+        for (int i = 0; i < value.length(); i++) {
+          if (value.charAt(i) >= 'a' && value.charAt(i) <= 'z')
+            isConstant = false;
+          else if (value.charAt(i) >= 'A' && value.charAt(i) <= 'Z')
+            isConstant = false;
+        }
+
+        if (isConstant)
+          return typeName + "(" + value + ")";
+          }
+
+          return typeName;
+        }
+        else {
+          return typeName;
+        }
+      }
+    }
+      } finally {
+    rs.close();
+      }
+    } catch (Throwable e) {
+      log.log(Level.FINE, e.toString(), e);
+    } finally {
+      try {
+    if (conn != null)
+      conn.close();
+      } catch (Exception e) {
+      }
+    }
+
+    return null;
+  }
+
+  protected String getDefaultCreateTableSQL(int sqlType, int length, int precision, int scale)
+  {
+    switch (sqlType) {
+    case java.sql.Types.BOOLEAN:
+      return "CHAR";
+    case java.sql.Types.BIT:
+    case java.sql.Types.TINYINT:
+    case java.sql.Types.SMALLINT:
+    case java.sql.Types.INTEGER:
+    case java.sql.Types.BIGINT:
+      return "INTEGER";
+    case java.sql.Types.NUMERIC:
+    case java.sql.Types.DECIMAL:
+      String typeString = "NUMERIC";
+      if (precision > 0) {
+        typeString += "(" + precision;
+        if (scale > 0) {
+          typeString += "," + scale;
+        }
+        typeString += ")";
+      }
+      return typeString;
+    case java.sql.Types.DOUBLE:
+    case java.sql.Types.FLOAT:
+      return "DOUBLE";
+    case java.sql.Types.CHAR:
+      return "CHAR";
+    case java.sql.Types.DATE:
+    case java.sql.Types.TIME:
+    case java.sql.Types.TIMESTAMP:
+        return "TIMESTAMP";
+    default:
+      return "VARCHAR(" + length + ")";
+    }
+  }
+
+  /**
+   * Returns a connection.
+   */
+  protected Connection getConnection()
+    throws SQLException
+  {
+    return _ds.getConnection();
+  }
+}

h2/src/tools/oracle/toplink/essentials/platform/database/H2Platform.java.txt

+/*
+ * The contents of this file are subject to the terms 
+ * of the Common Development and Distribution License 
+ * (the "License").  You may not use this file except 
+ * in compliance with the License.
+ * 
+ * You can obtain a copy of the license at 
+ * glassfish/bootstrap/legal/CDDLv1.0.txt or 
+ * https://glassfish.dev.java.net/public/CDDLv1.0.html. 
+ * See the License for the specific language governing 
+ * permissions and limitations under the License.
+ * 
+ * When distributing Covered Code, include this CDDL 
+ * HEADER in each file and include the License file at 
+ * glassfish/bootstrap/legal/CDDLv1.0.txt.  If applicable, 
+ * add the following below this CDDL HEADER, with the 
+ * fields enclosed by brackets "[]" replaced with your 
+ * own identifying information: Portions Copyright [yyyy] 
+ * [name of copyright owner]
+ */
+// Copyright (c) 1998, 2006, Oracle. All rights reserved.  
+package oracle.toplink.essentials.platform.database;
+
+import java.util.*;
+import java.io.*;
+import java.sql.*;
+import oracle.toplink.essentials.exceptions.*;
+import oracle.toplink.essentials.queryframework.*;
+import oracle.toplink.essentials.internal.helper.*;
+import oracle.toplink.essentials.expressions.*;
+import oracle.toplink.essentials.internal.expressions.*;
+import oracle.toplink.essentials.internal.databaseaccess.*;
+import oracle.toplink.essentials.internal.sessions.AbstractSession;
+
+/**
+ * <p><b>Purpose</b>: Provides H2 specific behaviour.
+ */
+public class H2Platform extends DatabasePlatform {
+    public H2Platform() {
+    }
+
+    protected Hashtable buildFieldTypes() {
+        Hashtable fieldTypeMapping;
+
+        fieldTypeMapping = super.buildFieldTypes();
+        fieldTypeMapping.put(Boolean.class, new FieldTypeDefinition("TINYINT", false));
+        fieldTypeMapping.put(Integer.class, new FieldTypeDefinition("INTEGER", false));
+        fieldTypeMapping.put(Long.class, new FieldTypeDefinition("NUMERIC", 19));
+        fieldTypeMapping.put(Float.class, new FieldTypeDefinition("REAL", false));
+        fieldTypeMapping.put(Double.class, new FieldTypeDefinition("REAL", false));
+        fieldTypeMapping.put(Short.class, new FieldTypeDefinition("SMALLINT", false));
+        fieldTypeMapping.put(Byte.class, new FieldTypeDefinition("SMALLINT", false));
+        fieldTypeMapping.put(java.math.BigInteger.class, new FieldTypeDefinition("NUMERIC", 38));
+        fieldTypeMapping.put(java.math.BigDecimal.class, new FieldTypeDefinition("NUMERIC", 38).setLimits(38, -19, 19));
+        fieldTypeMapping.put(Number.class, new FieldTypeDefinition("NUMERIC", 38).setLimits(38, -19, 19));
+        fieldTypeMapping.put(Byte[].class, new FieldTypeDefinition("BINARY", false));
+        fieldTypeMapping.put(Character[].class, new FieldTypeDefinition("LONGVARCHAR", false));
+        fieldTypeMapping.put(byte[].class, new FieldTypeDefinition("BINARY", false));
+        fieldTypeMapping.put(char[].class, new FieldTypeDefinition("LONGVARCHAR", false));
+        fieldTypeMapping.put(java.sql.Blob.class, new FieldTypeDefinition("BINARY", false));
+        fieldTypeMapping.put(java.sql.Clob.class, new FieldTypeDefinition("LONGVARCHAR", false));        
+        fieldTypeMapping.put(java.sql.Date.class, new FieldTypeDefinition("DATE", false));
+        fieldTypeMapping.put(java.sql.Time.class, new FieldTypeDefinition("TIME", false));
+        fieldTypeMapping.put(java.sql.Timestamp.class, new FieldTypeDefinition("TIMESTAMP", false));
+
+        return fieldTypeMapping;
+    }
+    
+    
+    // public boolean isHSQL() {
+    //     return true;
+    // }    
+
+    public boolean isH2() {
+        return true;
+    }
+
+    public boolean supportsForeignKeyConstraints() {
+        return true;
+    }
+    
+    public ValueReadQuery buildSelectQueryForNativeSequence(String seqName, Integer size) {
+        return new ValueReadQuery("CALL NEXT VALUE FOR " + getQualifiedSequenceName(seqName));
+        // return new ValueReadQuery("SELECT " + getQualifiedSequenceName(seqName) + ".NEXTVAL FROM DUAL");
+    }    
+    
+    public boolean supportsNativeSequenceNumbers() {
+        return true;
+    }
+    
+    protected String getQualifiedSequenceName(String seqName) {
+        if (getTableQualifier().equals("")) {
+            return seqName;
+        } else {
+            return getTableQualifier() + "." + seqName;
+        }
+    }
+    
+    public boolean supportsSelectForUpdateNoWait() {
+        return true;
+    }
+    
+    protected ExpressionOperator todayOperator() {
+        return ExpressionOperator.simpleFunctionNoParentheses(ExpressionOperator.Today, "SYSDATE");
+    }        
+    
+    protected void initializePlatformOperators() {
+        super.initializePlatformOperators();
+        addOperator(ExpressionOperator.simpleMath(ExpressionOperator.Concat, "||"));
+    }    
+    
+    public boolean shouldUseJDBCOuterJoinSyntax() {
+        return false;
+    }
+        
+}

h2/src/tools/org/apache/openjpa/jdbc/sql/H2Dictionary.java.txt

+package org.apache.openjpa.jdbc.sql;
+
+import java.math.BigDecimal;
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import java.sql.Types;
+import java.util.Arrays;
+import java.util.Locale;
+
+import org.apache.commons.lang.StringUtils;
+import org.apache.openjpa.jdbc.kernel.exps.FilterValue;
+import org.apache.openjpa.jdbc.schema.Column;
+import org.apache.openjpa.jdbc.schema.PrimaryKey;
+import org.apache.openjpa.jdbc.schema.Table;
+import org.apache.openjpa.jdbc.schema.Unique;
+import org.apache.openjpa.meta.JavaTypes;
+
+public class H2Dictionary extends DBDictionary {
+
+    public H2Dictionary() {
+        platform = "H2";
+        validationSQL = "CALL 1";
+        closePoolSQL = "SHUTDOWN";
+
+        supportsAutoAssign = true;
+        lastGeneratedKeyQuery = "CALL IDENTITY()";
+        autoAssignClause = "IDENTITY";
+        autoAssignTypeName = "INTEGER";
+        nextSequenceQuery = "CALL NEXT VALUE FOR {0}";
+
+        // CROSS JOIN is currently not supported
+        crossJoinClause = "JOIN";
+        requiresConditionForCrossJoin = true;
+        stringLengthFunction = "LENGTH({0})";
+        trimLeadingFunction = "LTRIM({0})";
+        trimTrailingFunction = "RTRIM({0})";
+        trimBothFunction = "TRIM({0})";
+
+        useSchemaName = true;
+        supportsSelectForUpdate = true;
+        supportsSelectStartIndex = true;
+        supportsSelectEndIndex = true;
+        rangePosition = RANGE_POST_LOCK;
+        supportsDeferredConstraints = false;
+
+        useGetObjectForBlobs = true;
+        blobTypeName = "BLOB";
+        doubleTypeName = "DOUBLE";
+
+        supportsNullTableForGetPrimaryKeys = true;
+        supportsNullTableForGetIndexInfo = true;
+
+        requiresCastForMathFunctions = false;
+        requiresCastForComparisons = false;
+
+        reservedWordSet.addAll(Arrays.asList(new String[] { "CURRENT_TIMESTAMP", "CURRENT_TIME", "CURRENT_DATE", "CROSS", "DISTINCT", "EXCEPT", "EXISTS", "FROM", "FOR", "FALSE",
+                "FULL", "GROUP", "HAVING", "INNER", "INTERSECT", "IS", "JOIN", "LIKE", "MINUS", "NATURAL", "NOT", "NULL", "ON", "ORDER", "PRIMARY", "ROWNUM", "SELECT", "SYSDATE",
+                "SYSTIME", "SYSTIMESTAMP", "TODAY", "TRUE", "UNION", "WHERE" }));
+    }
+
+    public int getJDBCType(int metaTypeCode, boolean lob) {
+        int type = super.getJDBCType(metaTypeCode, lob);
+        switch (type) {
+        case Types.BIGINT:
+            if (metaTypeCode == JavaTypes.BIGINTEGER)
+                return Types.NUMERIC;
+            break;
+        }
+        return type;
+    }
+
+    public int getPreferredType(int type) {
+        return super.getPreferredType(type);
+    }
+
+    public String[] getAddPrimaryKeySQL(PrimaryKey pk) {
+        return new String[0];
+    }
+
+    public String[] getDropPrimaryKeySQL(PrimaryKey pk) {
+        return new String[0];
+    }
+
+    public String[] getAddColumnSQL(Column column) {
+        return new String[] { "ALTER TABLE " + getFullName(column.getTable(), false) + " ADD COLUMN " + getDeclareColumnSQL(column, true) };
+    }
+
+    public String[] getCreateTableSQL(Table table) {
+        StringBuffer buf = new StringBuffer();
+        buf.append("CREATE TABLE ").append(getFullName(table, false)).append(" (");
+
+        Column[] cols = table.getColumns();
+        for (int i = 0; i < cols.length; i++) {
+            if (i > 0)
+                buf.append(", ");
+            buf.append(getDeclareColumnSQL(cols[i], false));
+        }
+
+        PrimaryKey pk = table.getPrimaryKey();
+        String pkStr;
+        if (pk != null) {
+            pkStr = getPrimaryKeyConstraintSQL(pk);
+            if (!StringUtils.isEmpty(pkStr))
+                buf.append(", ").append(pkStr);
+        }
+
+        Unique[] unqs = table.getUniques();
+        String unqStr;
+        for (int i = 0; i < unqs.length; i++) {
+            unqStr = getUniqueConstraintSQL(unqs[i]);
+            if (unqStr != null)
+                buf.append(", ").append(unqStr);
+        }
+
+        buf.append(")");
+        return new String[] { buf.toString() };
+    }
+
+    protected String getPrimaryKeyConstraintSQL(PrimaryKey pk) {
+        Column[] cols = pk.getColumns();
+        if (cols.length == 1 && cols[0].isAutoAssigned())
+            return null;
+        return super.getPrimaryKeyConstraintSQL(pk);
+    }
+
+    public boolean isSystemIndex(String name, Table table) {
+        return name.toUpperCase(Locale.ENGLISH).startsWith("SYSTEM_");
+    }
+
+    protected String getSequencesSQL(String schemaName, String sequenceName) {
+        StringBuffer buf = new StringBuffer();
+        buf.append("SELECT SEQUENCE_SCHEMA, SEQUENCE_NAME FROM ").append("INFORMATION_SCHEMA.SEQUENCES");
+        if (schemaName != null || sequenceName != null)
+            buf.append(" WHERE ");
+        if (schemaName != null) {
+            buf.append("SEQUENCE_SCHEMA = ?");
+            if (sequenceName != null)
+                buf.append(" AND ");
+        }
+        if (sequenceName != null)
+            buf.append("SEQUENCE_NAME = ?");
+        return buf.toString();
+    }
+
+    protected SQLBuffer toOperation(String op, SQLBuffer selects, SQLBuffer from, SQLBuffer where, SQLBuffer group, SQLBuffer having, SQLBuffer order, boolean distinct,
+            boolean forUpdate, long start, long end) {
+        return super.toOperation(op, selects, from, where, group, having, order, distinct, forUpdate, start, end);
+    }
+
+    public Column[] getColumns(DatabaseMetaData meta, String catalog, String schemaName, String tableName, String columnName, Connection conn) throws SQLException {
+        Column[] cols = super.getColumns(meta, catalog, schemaName, tableName, columnName, conn);
+        return cols;
+    }
+
+    public void setDouble(PreparedStatement stmnt, int idx, double val, Column col) throws SQLException {
+        super.setDouble(stmnt, idx, val, col);
+    }
+
+    public void setBigDecimal(PreparedStatement stmnt, int idx, BigDecimal val, Column col) throws SQLException {
+        super.setBigDecimal(stmnt, idx, val, col);
+    }
+
+    protected void appendSelectRange(SQLBuffer buf, long start, long end) {
+        if (end != Long.MAX_VALUE)
+            buf.append(" LIMIT ").appendValue(end - start);
+        if (start != 0)
+            buf.append(" OFFSET ").appendValue(start);
+    }
+
+    public void substring(SQLBuffer buf, FilterValue str, FilterValue start, FilterValue end) {
+        buf.append("SUBSTR(");
+        str.appendTo(buf);
+        buf.append(", (");
+        start.appendTo(buf);
+        buf.append(" + 1)");
+        if (end != null) {
+            buf.append(", (");
+            end.appendTo(buf);
+            buf.append(" - ");
+            start.appendTo(buf);
+            buf.append(")");
+        }
+        buf.append(")");
+    }
+
+    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(") - 1");
+        if (start != null) {
+            buf.append(" + ");
+            start.appendTo(buf);
+        }
+        buf.append(")");
+    }
+
+}