Package net.sourceforge.squirrel_sql.fw.dialects

Source Code of net.sourceforge.squirrel_sql.fw.dialects.SybaseDialectExt$SybaseDialectHelper

/*
* Copyright (C) 2006 Rob Manning
* manningr@users.sourceforge.net
*
* This program 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 any later version.
*
* This program 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.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
package net.sourceforge.squirrel_sql.fw.dialects;

import java.sql.SQLException;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;

import net.sourceforge.squirrel_sql.fw.sql.DatabaseObjectType;
import net.sourceforge.squirrel_sql.fw.sql.ForeignKeyInfo;
import net.sourceforge.squirrel_sql.fw.sql.IDatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.sql.ISQLDatabaseMetaData;
import net.sourceforge.squirrel_sql.fw.sql.ITableInfo;
import net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo;

import org.antlr.stringtemplate.StringTemplate;
import org.hibernate.HibernateException;

/**
* A dialect delegate for the Sybase database.
*/
public class SybaseDialectExt extends CommonHibernateDialect implements HibernateDialect
{

  private class SybaseDialectHelper extends org.hibernate.dialect.SybaseDialect {
    public SybaseDialectHelper() {
      super();
      registerColumnType(Types.BIGINT, "numeric($p)");
      registerColumnType(Types.BINARY, "image");
      registerColumnType(Types.BIT, "tinyint");
      registerColumnType(Types.BLOB, "image");
      registerColumnType(Types.BOOLEAN, "tinyint");
      registerColumnType(Types.CHAR, 255, "char($l)");
      registerColumnType(Types.CHAR, "text");
      registerColumnType(Types.CLOB, "text");
      registerColumnType(Types.DATE, "date");
      registerColumnType(Types.DECIMAL, "decimal($p,$s)");
      registerColumnType(Types.DOUBLE, "float($p)");
      registerColumnType(Types.FLOAT, "float($p)");
      registerColumnType(Types.INTEGER, "int");
      registerColumnType(Types.LONGVARBINARY, "image");
      registerColumnType(Types.LONGVARCHAR, "text");
      registerColumnType(Types.NUMERIC, "numeric($p,$s)");
      registerColumnType(Types.REAL, "real");
      registerColumnType(Types.SMALLINT, "smallint");
      registerColumnType(Types.TIME, "time");
      registerColumnType(Types.TIMESTAMP, "datetime");
      registerColumnType(Types.TINYINT, "tinyint");
      registerColumnType(Types.VARBINARY, "image");
      registerColumnType(Types.VARCHAR, 255, "varchar($l)");
      registerColumnType(Types.VARCHAR, "text");     
    }
  }
 
  /** extended hibernate dialect used in this wrapper */
  private SybaseDialectHelper _dialect = new SybaseDialectHelper();

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getTypeName(int, int, int, int)
   */
  @Override
  public String getTypeName(int code, int length, int precision, int scale) throws HibernateException
  {
    return _dialect.getTypeName(code, length, precision, scale);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#canPasteTo(net.sourceforge.squirrel_sql.fw.sql.IDatabaseObjectInfo)
   */
  @Override
  public boolean canPasteTo(IDatabaseObjectInfo info)
  {
    boolean result = true;
    DatabaseObjectType type = info.getDatabaseObjectType();
    if (type.getName().equalsIgnoreCase("database") || type.getName().equalsIgnoreCase("catalog"))
    {
      result = false;
    }
    return result;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getLengthFunction(int)
   */
  @Override
  public String getLengthFunction(int dataType)
  {
    return "datalength";
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getMaxPrecision(int)
   */
  @Override
  public int getMaxPrecision(int dataType)
  {
    if (dataType == Types.DOUBLE || dataType == Types.FLOAT)
    {
      return 48;
    } else
    {
      return 38;
    }
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getDisplayName()
   */
  @Override
  public String getDisplayName()
  {
    return "Sybase";
  }

  /**
   * Returns boolean value indicating whether or not this dialect supports the specified database
   * product/version.
   *
   * @param databaseProductName
   *           the name of the database as reported by DatabaseMetaData.getDatabaseProductName()
   * @param databaseProductVersion
   *           the version of the database as reported by DatabaseMetaData.getDatabaseProductVersion()
   * @return true if this dialect can be used for the specified product name and version; false otherwise.
   */
  @Override
  public boolean supportsProduct(String databaseProductName, String databaseProductVersion)
  {
    if (databaseProductName == null)
    {
      return false;
    }
    String lname = databaseProductName.trim().toLowerCase();
    if (lname.startsWith("sybase") || lname.startsWith("adaptive") || lname.startsWith("sql server"))
    {
      // We don't yet have the need to discriminate by version.
      return true;
    }
    return false;
  }

  /**
   * Returns a boolean value indicating whether or not this database dialect supports dropping columns from
   * tables.
   *
   * @return true if the database supports dropping columns; false otherwise.
   */
  @Override
  public boolean supportsDropColumn()
  {
    return true;
  }

  /**
   * Returns the SQL that forms the command to drop the specified colum in the specified table.
   *
   * @param tableName
   *           the name of the table that has the column
   * @param columnName
   *           the name of the column to drop.
   * @return
   * @throws UnsupportedOperationException
   *            if the database doesn't support dropping columns.
   */
  @Override
  public String getColumnDropSQL(String tableName, String columnName, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    return DialectUtils.getColumnDropSQL(tableName, columnName, qualifier, prefs, this);
  }

  /**
   * Returns the SQL that forms the command to drop the specified table. If cascade contraints is supported
   * by the dialect and cascadeConstraints is true, then a drop statement with cascade constraints clause
   * will be formed.
   *
   * @param iTableInfo
   *           the table to drop
   * @param cascadeConstraints
   *           whether or not to drop any FKs that may reference the specified table.
   * @return the drop SQL command.
   */
  @Override
  public List<String> getTableDropSQL(ITableInfo iTableInfo, boolean cascadeConstraints,
    boolean isMaterializedView, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {

    // SQL-Server doesn't support a cascade clause.
    List<String> dropTableSQL =
      DialectUtils.getTableDropSQL(iTableInfo,
        false,
        cascadeConstraints,
        false,
        DialectUtils.CASCADE_CLAUSE,
        false, qualifier, prefs, this);
    if (cascadeConstraints)
    {
      ArrayList<String> result = new ArrayList<String>();
      ForeignKeyInfo[] fks = iTableInfo.getExportedKeys();
      if (fks != null && fks.length > 0)
      {
        for (int i = 0; i < fks.length; i++)
        {
          ForeignKeyInfo info = fks[i];
          String fkName = info.getForeignKeyName();
          String fkTable = info.getForeignKeyTableName();
          StringBuilder tmp = new StringBuilder();
          tmp.append("ALTER TABLE ");
          tmp.append(fkTable);
          tmp.append(" DROP CONSTRAINT ");
          tmp.append(fkName);
          result.add(tmp.toString());
        }
      }
      result.addAll(dropTableSQL);
      return result;
    } else
    {
      return dropTableSQL;
    }
  }

  /**
   * Returns the SQL that forms the command to add a primary key to the specified table composed of the given
   * column names. alter table test add primary key (mychar)
   *
   * @param pkName
   *           the name of the constraint
   * @param columnNames
   *           the columns that form the key
   * @return
   */
  @Override
  public String[] getAddPrimaryKeySQL(String pkName, TableColumnInfo[] columns, ITableInfo ti, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    return new String[] { DialectUtils.getAddPrimaryKeySQL(ti, pkName, columns, false, qualifier, prefs, this) };
  }

  /**
   * Returns a boolean value indicating whether or not this dialect supports adding comments to columns.
   *
   * @return true if column comments are supported; false otherwise.
   */
  @Override
  public boolean supportsColumnComment()
  {
    return false;
  }

  /**
   * Returns the SQL statement to use to add a comment to the specified column of the specified table.
   *
   * @param info
   *           information about the column such as type, name, etc.
   * @return
   * @throws UnsupportedOperationException
   *            if the database doesn't support annotating columns with a comment.
   */
  @Override
  public String getColumnCommentAlterSQL(TableColumnInfo info, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs) throws UnsupportedOperationException
  {
    int featureId = DialectUtils.COLUMN_COMMENT_ALTER_TYPE;
    String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * Returns a boolean value indicating whether or not this database dialect supports changing a column from
   * null to not-null and vice versa.
   *
   * @return true if the database supports dropping columns; false otherwise.
   */
  @Override
  public boolean supportsAlterColumnNull()
  {
    return true;
  }

  /**
   * Returns the SQL used to alter the specified column to not allow null values alter table table_name
   * modify column_name not null
   *
   * @param info
   *           the column to modify
   * @return the SQL to execute
   */
  @Override
  public String[] getColumnNullableAlterSQL(TableColumnInfo info, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    String alterClause = DialectUtils.MODIFY_CLAUSE;
    return new String[] { DialectUtils.getColumnNullableAlterSQL(info, this, alterClause, false, qualifier, prefs) };
  }

  /**
   * Returns a boolean value indicating whether or not this database dialect supports renaming columns.
   *
   * @return true if the database supports changing the name of columns; false otherwise.
   */
  @Override
  public boolean supportsRenameColumn()
  {
    return true;
  }

  /**
   * Returns the SQL that is used to change the column name. exec sp_rename 'test.renameCol', newNameCol
   *
   * @param from
   *           the TableColumnInfo as it is
   * @param to
   *           the TableColumnInfo as it wants to be
   * @return the SQL to make the change
   */
  @Override
  public String getColumnNameAlterSQL(TableColumnInfo from, TableColumnInfo to, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    StringBuffer result = new StringBuffer();
    result.append("exec sp_rename ");
    result.append("'");
    result.append(from.getTableName());
    result.append(".");
    result.append(from.getColumnName());
    result.append("'");
    result.append(", ");
    result.append(to.getColumnName());
    return result.toString();
  }

  /**
   * Returns a boolean value indicating whether or not this dialect supports modifying a columns type.
   *
   * @return true if supported; false otherwise
   */
  @Override
  public boolean supportsAlterColumnType()
  {
    return true;
  }

  /**
   * Returns the SQL that is used to change the column type. alter table table_name modify column_name
   * datatype
   *
   * @param from
   *           the TableColumnInfo as it is
   * @param to
   *           the TableColumnInfo as it wants to be
   * @return the SQL to make the change
   * @throw UnsupportedOperationException if the database doesn't support modifying column types.
   */
  @Override
  public List<String> getColumnTypeAlterSQL(TableColumnInfo from, TableColumnInfo to,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs) throws UnsupportedOperationException
  {
    String alterClause = DialectUtils.MODIFY_CLAUSE;
    String setClause = "";
    return DialectUtils.getColumnTypeAlterSQL(this, alterClause, setClause, false, from, to, qualifier, prefs);
  }

  /**
   * Returns a boolean value indicating whether or not this database dialect supports changing a column's
   * default value.
   *
   * @return true if the database supports modifying column defaults; false otherwise
   */
  @Override
  public boolean supportsAlterColumnDefault()
  {
    return false;
  }

  /**
   * Returns the SQL command to change the specified column's default value
   *
   * @param info
   *           the column to modify and it's default value.
   * @return SQL to make the change
   */
  @Override
  public String getColumnDefaultAlterSQL(TableColumnInfo info, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    int featureId = DialectUtils.COLUMN_DEFAULT_ALTER_TYPE;
    String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * Returns the SQL command to drop the specified table's primary key.
   *
   * @param pkName
   *           the name of the primary key that should be dropped
   * @param tableName
   *           the name of the table whose primary key should be dropped
   * @return
   */
  @Override
  public String getDropPrimaryKeySQL(String pkName, String tableName, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    return DialectUtils.getDropPrimaryKeySQL(pkName, tableName, true, false, qualifier, prefs, this);
  }

  /**
   * Returns the SQL command to drop the specified table's foreign key constraint.
   *
   * @param fkName
   *           the name of the foreign key that should be dropped
   * @param tableName
   *           the name of the table whose foreign key should be dropped
   * @return
   */
  @Override
  public String getDropForeignKeySQL(String fkName, String tableName, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    return DialectUtils.getDropForeignKeySQL(fkName, tableName, qualifier, prefs, this);
  }

  /**
   * Returns the SQL command to create the specified table.
   *
   * @param tables
   *           the tables to get create statements for
   * @param md
   *           the metadata from the ISession
   * @param prefs
   *           preferences about how the resultant SQL commands should be formed.
   * @param isJdbcOdbc
   *           whether or not the connection is via JDBC-ODBC bridge.
   * @return the SQL that is used to create the specified table
   */
  @Override
  public List<String> getCreateTableSQL(List<ITableInfo> tables, ISQLDatabaseMetaData md,
    CreateScriptPreferences prefs, boolean isJdbcOdbc) throws SQLException
  {
    return DialectUtils.getCreateTableSQL(tables, md, this, prefs, isJdbcOdbc);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getDialectType()
   */
  @Override
  public DialectType getDialectType()
  {
    return DialectType.SYBASEASE;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getIndexAccessMethodsTypes()
   */
  @Override
  public String[] getIndexAccessMethodsTypes()
  {
    return new String[] { "UNIQUE", "NON-UNIQUE" };
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getIndexStorageOptions()
   */
  @Override
  public String[] getIndexStorageOptions()
  {
    return new String[] { "NONCLUSTERED", "CLUSTERED" };
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getAddAutoIncrementSQL(net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getAddAutoIncrementSQL(TableColumnInfo column, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    final int featureId = DialectUtils.ADD_AUTO_INCREMENT_TYPE;
    final String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getAddColumnSQL(net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getAddColumnSQL(TableColumnInfo column, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    ArrayList<String> result = new ArrayList<String>();

    boolean addDefaultClause = true;
    boolean supportsNullQualifier = true;
    boolean addNullClause = true;

    String sql =
      DialectUtils.getAddColumSQL(column,
        this,
        addDefaultClause,
        supportsNullQualifier,
        addNullClause,
        qualifier,
        prefs);

    result.add(sql);

    return result.toArray(new String[result.size()]);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getAddForeignKeyConstraintSQL(java.lang.String,
   *      java.lang.String, java.lang.String, java.lang.Boolean, java.lang.Boolean, java.lang.Boolean,
   *      boolean, java.lang.String, java.util.Collection, java.lang.String, java.lang.String,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getAddForeignKeyConstraintSQL(String localTableName, String refTableName,
    String constraintName, Boolean deferrable, Boolean initiallyDeferred, Boolean matchFull,
    boolean autoFKIndex, String fkIndexName, Collection<String[]> localRefColumns, String onUpdateAction,
    String onDeleteAction, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    StringTemplate st = new StringTemplate(ST_ADD_FOREIGN_KEY_CONSTRAINT_STYLE_ONE);

    HashMap<String, String> fkValuesMap = new HashMap<String, String>();
    fkValuesMap.put("childTableName", localTableName);
    fkValuesMap.put("constraint", "CONSTRAINT");
    fkValuesMap.put("constraintName", constraintName);
    fkValuesMap.put("parentTableName", refTableName);

    // TODO: create the child index ST
    StringTemplate childIndexST = null;
    HashMap<String, String> ckIndexValuesMap = null;

    return DialectUtils.getAddForeignKeyConstraintSQL(st,
      fkValuesMap,
      childIndexST,
      ckIndexValuesMap,
      localRefColumns,
      qualifier,
      prefs,
      this);

  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.HibernateDialect#getAddUniqueConstraintSQL(java.lang.String,
   *      java.lang.String, net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo[],
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getAddUniqueConstraintSQL(String tableName, String constraintName,
    TableColumnInfo[] columns, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    StringTemplate st = new StringTemplate(ST_ADD_UNIQUE_CONSTRAINT_STYLE_TWO);

    HashMap<String, String> valuesMap = new HashMap<String, String>();

    valuesMap.put(ST_TABLE_NAME_KEY, tableName);
    valuesMap.put(ST_CONSTRAINT_NAME_KEY, constraintName);

    return new String[] { DialectUtils.getAddUniqueConstraintSQL(st,
      valuesMap,
      columns,
      qualifier,
      prefs,
      this) };
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getAlterSequenceSQL(java.lang.String,
   *      java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, boolean,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getAlterSequenceSQL(String sequenceName, String increment, String minimum, String maximum,
    String restart, String cache, boolean cycle, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    final int featureId = DialectUtils.ALTER_SEQUENCE_TYPE;
    final String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getCreateIndexSQL(java.lang.String,
   *      java.lang.String, java.lang.String, java.lang.String[], boolean, java.lang.String,
   *      java.lang.String, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getCreateIndexSQL(String indexName, String tableName, String accessMethod, String[] columns,
    boolean unique, String tablespace, String constraints, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    StringTemplate st = new StringTemplate(ST_CREATE_INDEX_STYLE_TWO);

    HashMap<String, String> valuesMap = new HashMap<String, String>();
    if (unique)
    {
      valuesMap.put(ST_UNIQUE_KEY, "UNIQUE");
    }

    // TODO: Need to add storageOptions to the add index dialog
    // valuesMap.put(ST_STORAGE_OPTION_KEY, );

    valuesMap.put(ST_INDEX_NAME_KEY, indexName);
    valuesMap.put(ST_TABLE_NAME_KEY, tableName);

    return DialectUtils.getAddIndexSQL(this, st, valuesMap, columns, qualifier, prefs);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getCreateSequenceSQL(java.lang.String,
   *      java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, boolean,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getCreateSequenceSQL(String sequenceName, String increment, String minimum, String maximum,
    String start, String cache, boolean cycle, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    final int featureId = DialectUtils.CREATE_SEQUENCE_TYPE;
    final String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getCreateTableSQL(java.lang.String,
   *      java.util.List, java.util.List, net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier)
   */
  @Override
  public String getCreateTableSQL(String tableName, List<TableColumnInfo> columns,
    List<TableColumnInfo> primaryKeys, SqlGenerationPreferences prefs, DatabaseObjectQualifier qualifier)
  {
    return DialectUtils.getCreateTableSQL(tableName, columns, primaryKeys, prefs, qualifier, this);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getCreateViewSQL(java.lang.String,
   *      java.lang.String, java.lang.String,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getCreateViewSQL(String viewName, String definition, String checkOption,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    StringTemplate st = new StringTemplate(ST_CREATE_VIEW_STYLE_ONE);

    HashMap<String, String> valuesMap = new HashMap<String, String>();
    valuesMap.put("viewName", viewName);
    valuesMap.put("selectStatement", definition);
    if (checkOption != null && !"".equals(checkOption))
    {
      valuesMap.put("with", "WITH");
      valuesMap.put("checkOption", "CHECK OPTION");
    }

    return DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getDropConstraintSQL(java.lang.String,
   *      java.lang.String, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getDropConstraintSQL(String tableName, String constraintName,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    return DialectUtils.getDropConstraintSQL(tableName, constraintName, qualifier, prefs, this);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getDropIndexSQL(java.lang.String,
   *      java.lang.String, boolean, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getDropIndexSQL(String tableName, String indexName, boolean cascade,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    StringTemplate st = new StringTemplate(ST_DROP_INDEX_STYLE_TWO);
    st.setAttribute(ST_INDEX_NAME_KEY, indexName);
    st.setAttribute(ST_TABLE_NAME_KEY, tableName);
    return st.toString();
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getDropSequenceSQL(java.lang.String,
   *      boolean, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getDropSequenceSQL(String sequenceName, boolean cascade, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    final int featureId = DialectUtils.DROP_SEQUENCE_TYPE;
    final String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getDropViewSQL(java.lang.String, boolean,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getDropViewSQL(String viewName, boolean cascade, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    Boolean cascadeNotSupported = null;
    return DialectUtils.getDropViewSQL(viewName, cascadeNotSupported, qualifier, prefs, this);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getInsertIntoSQL(java.lang.String,
   *      java.util.List, java.lang.String, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getInsertIntoSQL(String tableName, List<String> columns, String valuesPart,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    return DialectUtils.getInsertIntoSQL(tableName, columns, valuesPart, qualifier, prefs, this);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getRenameTableSQL(java.lang.String,
   *      java.lang.String, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getRenameTableSQL(String oldTableName, String newTableName,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    StringTemplate st = new StringTemplate(ST_SP_RENAME_STYLE_ONE);
    HashMap<String, String> valuesMap = new HashMap<String, String>();

    valuesMap.put(ST_OLD_OBJECT_NAME_KEY, oldTableName);
    valuesMap.put(ST_NEW_OBJECT_NAME_KEY, newTableName);

    return DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getRenameViewSQL(java.lang.String,
   *      java.lang.String, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getRenameViewSQL(String oldViewName, String newViewName,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    StringTemplate st = new StringTemplate(ST_SP_RENAME_STYLE_ONE);
    HashMap<String, String> valuesMap = new HashMap<String, String>();

    valuesMap.put(ST_OLD_OBJECT_NAME_KEY, oldViewName);
    valuesMap.put(ST_NEW_OBJECT_NAME_KEY, newViewName);

    return new String[] { DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs) };
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getSequenceInformationSQL(java.lang.String,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getSequenceInformationSQL(String sequenceName, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    final int featureId = DialectUtils.SEQUENCE_INFORMATION_TYPE;
    final String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getUpdateSQL(java.lang.String,
   *      java.lang.String[], java.lang.String[], java.lang.String[], java.lang.String[], java.lang.String[],
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getUpdateSQL(String tableName, String[] setColumns, String[] setValues, String[] fromTables,
    String[] whereColumns, String[] whereValues, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
   
    String templateStr = "";
   
    if (fromTables != null) {
      templateStr = ST_UPDATE_CORRELATED_QUERY_STYLE_TWO;
    } else {
      templateStr = ST_UPDATE_STYLE_ONE;
    }
     
    StringTemplate st = new StringTemplate(templateStr);
   
    return DialectUtils.getUpdateSQL(st,
      tableName,
      setColumns,
      setValues,
      fromTables,
      whereColumns,
      whereValues,
      qualifier,
      prefs,
      this);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsAccessMethods()
   */
  @Override
  public boolean supportsAccessMethods()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsAddForeignKeyConstraint()
   */
  @Override
  public boolean supportsAddForeignKeyConstraint()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsAddUniqueConstraint()
   */
  @Override
  public boolean supportsAddUniqueConstraint()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsAlterSequence()
   */
  @Override
  public boolean supportsAlterSequence()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsAutoIncrement()
   */
  @Override
  public boolean supportsAutoIncrement()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsCheckOptionsForViews()
   */
  @Override
  public boolean supportsCheckOptionsForViews()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsCreateIndex()
   */
  @Override
  public boolean supportsCreateIndex()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsCreateSequence()
   */
  @Override
  public boolean supportsCreateSequence()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsCreateTable()
   */
  @Override
  public boolean supportsCreateTable()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsCreateView()
   */
  @Override
  public boolean supportsCreateView()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsDropConstraint()
   */
  @Override
  public boolean supportsDropConstraint()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsDropIndex()
   */
  @Override
  public boolean supportsDropIndex()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsDropSequence()
   */
  @Override
  public boolean supportsDropSequence()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsDropView()
   */
  @Override
  public boolean supportsDropView()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsEmptyTables()
   */
  @Override
  public boolean supportsEmptyTables()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsIndexes()
   */
  @Override
  public boolean supportsIndexes()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsInsertInto()
   */
  @Override
  public boolean supportsInsertInto()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsMultipleRowInserts()
   */
  @Override
  public boolean supportsMultipleRowInserts()
  {
    /*
     * Can be done as follows in MS SQLServer INSERT INTO mytable(id,name) SELECT 1, 'pizza' UNION SELECT 2,
     * 'donuts' UNION SELECT 3, 'milk';
     */
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsRenameTable()
   */
  @Override
  public boolean supportsRenameTable()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsRenameView()
   */
  @Override
  public boolean supportsRenameView()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsSequence()
   */
  @Override
  public boolean supportsSequence()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsSequenceInformation()
   */
  @Override
  public boolean supportsSequenceInformation()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsTablespace()
   */
  @Override
  public boolean supportsTablespace()
  {
    return false;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsUpdate()
   */
  @Override
  public boolean supportsUpdate()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsAddColumn()
   */
  @Override
  public boolean supportsAddColumn()
  {
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsViewDefinition()
   */
  @Override
  public boolean supportsViewDefinition() {
    return true;
 
 
  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getViewDefinitionSQL(java.lang.String, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier, net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getViewDefinitionSQL(String viewName, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    // Discovered that the loginame field can be null - in that case, how to know we have the correct view?
    String sql =
      "select text from sysobjects inner join syscomments on syscomments.id = sysobjects.id "
        + "where (loginame = '$catalogName$' or loginame is null) " +
            "and name = '$viewName$' and text not like '%--%'";   

    StringTemplate st = new StringTemplate(sql);
    st.setAttribute(ST_CATALOG_NAME_KEY, qualifier.getCatalog());
    st.setAttribute(ST_VIEW_NAME_KEY, viewName);

    return st.toString();
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getQualifiedIdentifier(java.lang.String, net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier, net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getQualifiedIdentifier(String identifier, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    return identifier;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsCorrelatedSubQuery()
   */
  @Override
  public boolean supportsCorrelatedSubQuery()
  {
    return true;
  }
 
}
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