Package net.sourceforge.squirrel_sql.fw.dialects

Source Code of net.sourceforge.squirrel_sql.fw.dialects.HSQLDialectExt

/*
* 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.Types;
import java.util.ArrayList;
import java.util.Arrays;
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.IDatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.sql.ITableInfo;
import net.sourceforge.squirrel_sql.fw.sql.JDBCTypeMapper;
import net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo;

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

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

  private class HSQLDialectHelper extends org.hibernate.dialect.HSQLDialect
  {
    public HSQLDialectHelper()
    {
      registerColumnType(Types.BIGINT, "bigint");
      registerColumnType(Types.BINARY, "binary");
      registerColumnType(Types.BIT, "bit");
      registerColumnType(Types.BLOB, "longvarbinary");
      // registerColumnType(Types.BOOLEAN, "bit");
      registerColumnType(Types.BOOLEAN, "boolean");
      registerColumnType(Types.CHAR, "char($l)");
      registerColumnType(Types.CLOB, "longvarchar");
      registerColumnType(Types.DATE, "date");
      registerColumnType(Types.DECIMAL, "decimal");
      registerColumnType(Types.DOUBLE, "double");
      registerColumnType(Types.FLOAT, "float");
      registerColumnType(Types.INTEGER, "integer");
      registerColumnType(Types.LONGVARBINARY, "longvarbinary");
      registerColumnType(Types.LONGVARCHAR, "longvarchar");
      registerColumnType(Types.NUMERIC, "numeric");
      registerColumnType(Types.REAL, "real");
      registerColumnType(Types.SMALLINT, "smallint");
      registerColumnType(Types.TIME, "time");
      registerColumnType(Types.TIMESTAMP, "timestamp");
      registerColumnType(Types.TINYINT, "tinyint");
      registerColumnType(Types.VARBINARY, "varbinary");
      registerColumnType(Types.VARCHAR, "varchar");
    }
  }

  /** extended hibernate dialect used in this wrapper */
  private HSQLDialectHelper _dialect = new HSQLDialectHelper();

  /**
   * @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"))
    {
      result = false;
    }
    return result;
  }

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

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsProduct(java.lang.String,
   *      java.lang.String)
   */
  @Override
  public boolean supportsProduct(String databaseProductName, String databaseProductVersion)
  {
    if (databaseProductName == null)
    {
      return false;
    }
    if (databaseProductName.trim().startsWith("HSQL"))
    {
      // We don't yet have the need to discriminate by version.
      return true;
    }
    return false;
  }

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

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getTableDropSQL(net.sourceforge.squirrel_sql.fw.sql.ITableInfo,
   *      boolean, boolean, DatabaseObjectQualifier, SqlGenerationPreferences)
   */
  @Override
  public List<String> getTableDropSQL(ITableInfo iTableInfo, boolean cascadeConstraints,
    boolean isMaterializedView, DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    return DialectUtils.getTableDropSQL(iTableInfo,
      true,
      cascadeConstraints,
      false,
      DialectUtils.CASCADE_CLAUSE,
      false,
      qualifier,
      prefs,
      this);
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getAddPrimaryKeySQL(java.lang.String,
   *      net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo[],
   *      net.sourceforge.squirrel_sql.fw.sql.ITableInfo, DatabaseObjectQualifier, SqlGenerationPreferences)
   */
  @Override
  public String[] getAddPrimaryKeySQL(String pkName, TableColumnInfo[] columns, ITableInfo ti,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    // ALTER TABLE <tablename> ADD [CONSTRAINT <constraintname>] PRIMARY KEY (<column list>);
    String tableName = DialectUtils.shapeQualifiableIdentifier(ti.getSimpleName(), qualifier, prefs, this);
    return getAddPrimaryKeySQL(pkName, columns, tableName, qualifier, prefs);
  }

  private String[] getAddPrimaryKeySQL(String pkName, TableColumnInfo[] columns, String tableName,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {

    // ALTER TABLE <tablename> ADD [CONSTRAINT <constraintname>] PRIMARY KEY (<column list>);

    StringBuffer result = new StringBuffer();
    result.append("ALTER TABLE ");
    result.append(tableName);
    result.append(" ADD CONSTRAINT ");
    result.append(pkName);
    result.append(" PRIMARY KEY (");
    for (int i = 0; i < columns.length; i++)
    {
      String columnName = DialectUtils.shapeIdentifier(columns[i].getColumnName(), prefs, this);
      result.append(columnName);
      if (i + 1 < columns.length)
      {
        result.append(", ");
      }
    }
    result.append(")");
    return new String[] { result.toString() };
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getColumnCommentAlterSQL(net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String getColumnCommentAlterSQL(TableColumnInfo info, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs) throws UnsupportedOperationException
  {
    throw new UnsupportedOperationException("HSQLDB doesn't support column comments");
  }

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getColumnNullableAlterSQL(net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public String[] getColumnNullableAlterSQL(TableColumnInfo info, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    // "ALTER TABLE $tableName$ ALTER COLUMN $columnName$ SET $nullable$";
    StringTemplate st = new StringTemplate(ST_ALTER_COLUMN_NULL_STYLE_ONE);
    HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_TABLE_NAME_KEY,
        info.getTableName(),
        ST_COLUMN_NAME_KEY,
        info.getColumnName());

    if (info.isNullable().equalsIgnoreCase("YES"))
    {
      valuesMap.put(ST_NULLABLE_KEY, "NULL");
    } else
    {
      valuesMap.put(ST_NULLABLE_KEY, "NOT NULL");
    }
    return new String[] { DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs) };
  }

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getColumnNameAlterSQL(net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo, DatabaseObjectQualifier,
   *      SqlGenerationPreferences)
   */
  @Override
  public String getColumnNameAlterSQL(TableColumnInfo from, TableColumnInfo to,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs)
  {
    String alterClause = DialectUtils.ALTER_COLUMN_CLAUSE;
    String renameToClause = DialectUtils.RENAME_TO_CLAUSE;
    return DialectUtils.getColumnNameAlterSQL(from, to, alterClause, renameToClause, qualifier, prefs, this);

  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getColumnTypeAlterSQL(net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier,
   *      net.sourceforge.squirrel_sql.fw.dialects.SqlGenerationPreferences)
   */
  @Override
  public List<String> getColumnTypeAlterSQL(TableColumnInfo from, TableColumnInfo to,
    DatabaseObjectQualifier qualifier, SqlGenerationPreferences prefs) throws UnsupportedOperationException
  {
    String alterClause = DialectUtils.ALTER_COLUMN_CLAUSE;
    String setClause = "";
    return DialectUtils.getColumnTypeAlterSQL(this, alterClause, setClause, false, from, to, qualifier, prefs);
  }

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

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getColumnDefaultAlterSQL(net.sourceforge.squirrel_sql.fw.sql.TableColumnInfo,
   *      DatabaseObjectQualifier, SqlGenerationPreferences)
   */
  @Override
  public String getColumnDefaultAlterSQL(TableColumnInfo info, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    String alterClause = DialectUtils.ALTER_COLUMN_CLAUSE;
    String defaultClause = DialectUtils.SET_DEFAULT_CLAUSE;
    return DialectUtils.getColumnDefaultAlterSQL(this,
      info,
      alterClause,
      false,
      defaultClause,
      qualifier,
      prefs);
  }

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

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getIndexAccessMethodsTypes()
   */
  @Override
  public String[] getIndexAccessMethodsTypes()
  {
   
    throw new UnsupportedOperationException("Not yet implemented");
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getIndexStorageOptions()
   */
  @Override
  public String[] getIndexStorageOptions()
  {
   
    throw new UnsupportedOperationException("Not yet implemented");
  }

  /**
   * @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)
  {
    // Pre-requisites are that column needs to be primary key and it must be integer type.
    // alter table IDENTITYTEST2 alter column myid identity

    // "ALTER TABLE $tableName$ ALTER COLUMN $columnName$ IDENTITY";
    StringTemplate st = new StringTemplate(ST_ADD_AUTO_INCREMENT_STYLE_TWO);

    HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_TABLE_NAME_KEY,
        column.getTableName(),
        ST_COLUMN_NAME_KEY,
        column.getColumnName());

    String[] pkSQL =
      getAddPrimaryKeySQL("PK_" + column.getTableName() + "_" + column.getColumnName(),
        new TableColumnInfo[] { column },
        column.getTableName(), qualifier, prefs);

    ArrayList<String> result = new ArrayList<String>();

    result.add("-- Column must be a primary key and an integer type");
    result.addAll(Arrays.asList(pkSQL));
    result.add(DialectUtils.bindTemplateAttributes(this, st, valuesMap, qualifier, prefs));

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

  /**
   * @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 = false;
    boolean supportsNullQualifier = true;
    boolean addNullClause = true;

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

    result.add(sql);

    if (column.getDefaultValue() != null && !"".equals(column.getDefaultValue()))
    {
      StringBuilder defaultSQL = new StringBuilder();
      defaultSQL.append("ALTER TABLE ");
      defaultSQL.append(column.getTableName());
      defaultSQL.append(" ALTER COLUMN ");
      defaultSQL.append(column.getColumnName());
      defaultSQL.append(" SET DEFAULT ");
      if (JDBCTypeMapper.isNumberType(column.getDataType()))
      {
        defaultSQL.append(column.getDefaultValue());
      } else
      {
        defaultSQL.append("'");
        defaultSQL.append(column.getDefaultValue());
        defaultSQL.append("'");
      }
    }

    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)
  {
    // ALTER TABLE <tablename>
    // ADD [CONSTRAINT <constraintname>] FOREIGN KEY (<column list>)
    // REFERENCES <exptablename> (<column list>)
    // [ON {DELETE | UPDATE} {CASCADE | SET DEFAULT | SET NULL}];

    // "ALTER TABLE $childTableName$ " +
    // "ADD $constraint$ $constraintName$ FOREIGN KEY ( $childColumn; separator=\",\"$ ) " +
    // "REFERENCES $parentTableName$ ( $parentColumn; separator=\",\"$ )";

    StringTemplate fkST = new StringTemplate(ST_ADD_FOREIGN_KEY_CONSTRAINT_STYLE_ONE);
    HashMap<String, String> fkValuesMap = DialectUtils.getValuesMap(ST_CHILD_TABLE_KEY, localTableName);
    fkValuesMap.put(ST_CONSTRAINT_KEY, "CONSTRAINT");
    fkValuesMap.put(ST_CONSTRAINT_NAME_KEY, constraintName);
    fkValuesMap.put(ST_PARENT_TABLE_KEY, refTableName);

    StringTemplate childIndexST = null;
    HashMap<String, String> ckIndexValuesMap = null;

    if (autoFKIndex)
    {
      // "CREATE $unique$ $storageOption$ INDEX $indexName$ " +
      // "ON $tableName$ ( $columnName; separator=\",\"$ )";

      childIndexST = new StringTemplate(ST_CREATE_INDEX_STYLE_TWO);
      ckIndexValuesMap = new HashMap<String, String>();
      ckIndexValuesMap.put(ST_INDEX_NAME_KEY, "fk_child_idx");
    }

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

  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#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)
  {
    // ALTER TABLE <tablename> ADD [CONSTRAINT <constraintname>] UNIQUE (<column list>);

    // "ALTER TABLE $tableName$ " +
    // "ADD CONSTRAINT $constraintName$ UNIQUE ($columnName; separator=\",\"$)";
    StringTemplate st = new StringTemplate(ST_ADD_UNIQUE_CONSTRAINT_STYLE_TWO);

    HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_TABLE_NAME_KEY, tableName, 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)
  {
    // ALTER SEQUENCE <sequencename> RESTART WITH <value>;

    // "ALTER SEQUENCE $sequenceName$ " +
    // "$restartWith$ $startValue$ " +
    // "$incrementBy$ $incrementValue$ ";
    StringTemplate st = new StringTemplate(ST_ALTER_SEQUENCE_STYLE_ONE);

    st.setAttribute(ST_SEQUENCE_NAME_KEY, sequenceName);
    st.setAttribute(ST_RESTART_WITH_KEY, "RESTART WITH");
    st.setAttribute(ST_START_VALUE_KEY, restart);

    return new String[] { st.toString() };
  }

  /**
   * @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)
  {
    // CREATE [UNIQUE] INDEX <index> ON <table> (<column> [DESC] [, ...]) [DESC];

    // "CREATE $unique$ $storageOption$ INDEX $indexName$ " +
    // "ON $tableName$ ( $columnName; separator=\",\"$ )";

    StringTemplate st = new StringTemplate(ST_CREATE_INDEX_STYLE_TWO);

    HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_INDEX_NAME_KEY, indexName, ST_TABLE_NAME_KEY, tableName);

    if (unique)
    {
      valuesMap.put(ST_UNIQUE_KEY, "UNIQUE");
    }

    return DialectUtils.bindTemplateAttributes(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)
  {
    // CREATE SEQUENCE <sequencename> [AS {INTEGER | BIGINT}]
    // [START WITH <startvalue>] [INCREMENT BY <incrementvalue>];

    // "CREATE SEQUENCE $sequenceName$ $startWith$ " +
    // "$increment$ $minimum$ $maximum$ $cache$ $cycle$";

    StringTemplate st = new StringTemplate(ST_CREATE_SEQUENCE_STYLE_TWO);

    HashMap<String, String> valuesMap = DialectUtils.getValuesMap(ST_SEQUENCE_NAME_KEY, sequenceName);

    OptionalSqlClause startWithClause = new OptionalSqlClause("START WITH", start);
    OptionalSqlClause incrementByClause = new OptionalSqlClause("INCREMENT BY", increment);

    valuesMap.put(ST_START_WITH_KEY, startWithClause.toString());
    valuesMap.put(ST_INCREMENT_KEY, incrementByClause.toString());

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

  /**
   * @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)
  {
    // CREATE VIEW <viewname>[(<viewcolumn>,..) AS SELECT ... FROM ... [WHERE Expression]
    // [ORDER BY orderExpression [, ...]]
    // [LIMIT <limit> [OFFSET <offset>]];

    // "CREATE VIEW $viewName$ " +
    // "AS $selectStatement$ $with$ $checkOptionType$ $checkOption$";
    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);

    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)
  {
    // ALTER TABLE $tableName$ DROP CONSTRAINT $constraintName$
    StringTemplate st = new StringTemplate(ST_DROP_CONSTRAINT_STYLE_ONE);

    HashMap<String, String> valuesMap =
      DialectUtils.getValuesMap(ST_TABLE_NAME_KEY, tableName, ST_CONSTRAINT_NAME_KEY, constraintName);

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

  /**
   * @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)
  {
    // DROP INDEX index [IF EXISTS];

    // "DROP INDEX $indexName$";
    StringTemplate st = new StringTemplate(ST_DROP_INDEX_STYLE_THREE);
    st.setAttribute(ST_INDEX_NAME_KEY, indexName);

    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)
  {
    // "DROP SEQUENCE $sequenceName$ $cascade$";
    StringTemplate st = new StringTemplate(ST_DROP_SEQUENCE_STYLE_ONE);

    HashMap<String, String> valuesMap = DialectUtils.getValuesMap(ST_SEQUENCE_NAME_KEY, sequenceName);

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

  /**
   * @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)
  {
    // "DROP VIEW $viewName$";
    StringTemplate st = new StringTemplate(ST_DROP_VIEW_STYLE_ONE);

    HashMap<String, String> valuesMap = DialectUtils.getValuesMap(ST_VIEW_NAME_KEY, viewName);

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

  /**
   * @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)
  {
    final int featureId = DialectUtils.RENAME_TABLE_TYPE;
    final String msg = DialectUtils.getUnsupportedMessage(this, featureId);
    throw new UnsupportedOperationException(msg);
  }

  /**
   * @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)
  {
   
    throw new UnsupportedOperationException("Not yet implemented");
  }

  /**
   * @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)
  {
    // String last_value = rs.getString(1); // last_value
    // String max_value = rs.getString(2); // max_value
    // String min_value = rs.getString(3); // min_value
    // String cache_value = rs.getString(4); // cache_value
    // String increment_by = rs.getString(5); // increment_by
    // int cycleInt = rs.getInt(6); // is_cycled

    String templateStr =
      "select start_with as last_value, MAXIMUM_VALUE, MINIMUM_VALUE, 0 as CACHE_VALUE, INCREMENT, "
        + "case INCREMENT " + "when 'NO' then 0 " + "else 1 " + "end as INCREMENT_BY "
        + "from INFORMATION_SCHEMA.SYSTEM_SEQUENCES " + "where SEQUENCE_SCHEMA = '$sequenceSchema$' "
        + "and SEQUENCE_NAME = '$sequenceName$' ";

    StringTemplate st = new StringTemplate(templateStr);

    st.setAttribute(ST_SEQUENCE_NAME_KEY, sequenceName);
    st.setAttribute(ST_SCHEMA_NAME_KEY, qualifier.getSchema());

    return st.toString();
  }

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

  /**
   * @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 true;
  }

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

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

  /**
   * @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 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 true;
  }

  /**
   * @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()
   */
  public boolean supportsIndexes()
  {
    return true;
  }

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

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

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

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

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

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

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsAddColumn()
   */
  public boolean supportsAddColumn()
  {
    // TODO verify this is correct
    return true;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#supportsViewDefinition()
   */
  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)
   */
  public String getViewDefinitionSQL(String viewName, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    String templateStr =
      "SELECT VIEW_DEFINITION " + "FROM INFORMATION_SCHEMA.SYSTEM_VIEWS "
        + "WHERE TABLE_NAME = '$viewName$' " + "and TABLE_SCHEMA = '$schemaName$' ";

    StringTemplate st = new StringTemplate(templateStr);
    st.setAttribute(ST_VIEW_NAME_KEY, viewName);
    st.setAttribute(ST_SCHEMA_NAME_KEY, qualifier.getSchema());

    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)
   */
  public String getQualifiedIdentifier(String identifier, DatabaseObjectQualifier qualifier,
    SqlGenerationPreferences prefs)
  {
    return identifier;
  }

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

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getSequencePropertyMutability()
   */
  @Override
  public SequencePropertyMutability getSequencePropertyMutability()
  {
    SequencePropertyMutability result = new SequencePropertyMutability();
    result.setCache(false);
    result.setCycle(false);
    result.setMaxValue(false);
    result.setMinValue(false);
    result.setRestart(true);
    result.setStartWith(true);
    return result;
  }

  /**
   * @see net.sourceforge.squirrel_sql.fw.dialects.CommonHibernateDialect#getTimestampMaximumFractionalDigits()
   */
  @Override
  public int getTimestampMaximumFractionalDigits()
  {
    return 9;
  }

}
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