org.hibernate.dialect: public class: HSQLDialect

org.hibernate.dialect
public class: HSQLDialect [javadoc | source]

java.lang.Object
   org.hibernate.dialect.Dialect
      org.hibernate.dialect.HSQLDialect

An SQL dialect compatible with HSQLDB (Hypersonic SQL).

Note this version supports HSQLDB version 1.8 and higher, only.

author: Christoph - Sturm

author: Phillip - Baird

Nested Class Summary:
public static class	HSQLDialect.ReadUncommittedLockingStrategy

Fields inherited from org.hibernate.dialect.Dialect:
DEFAULT_BATCH_SIZE, NO_BATCH, QUOTE, CLOSED_QUOTE

Constructor:
public HSQLDialect() { super(); registerColumnType( Types.BIGINT, "bigint" ); registerColumnType( Types.BINARY, "binary" ); registerColumnType( Types.BIT, "bit" ); registerColumnType( Types.CHAR, "char(1)" ); 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.SMALLINT, "smallint" ); registerColumnType( Types.TINYINT, "tinyint" ); registerColumnType( Types.TIME, "time" ); registerColumnType( Types.TIMESTAMP, "timestamp" ); registerColumnType( Types.VARCHAR, "varchar($l)" ); registerColumnType( Types.VARBINARY, "varbinary($l)" ); registerColumnType( Types.NUMERIC, "numeric" ); //HSQL has no Blob/Clob support .... but just put these here for now! registerColumnType( Types.BLOB, "longvarbinary" ); registerColumnType( Types.CLOB, "longvarchar" ); registerFunction( "ascii", new StandardSQLFunction( "ascii", Hibernate.INTEGER ) ); registerFunction( "char", new StandardSQLFunction( "char", Hibernate.CHARACTER ) ); registerFunction( "length", new StandardSQLFunction( "length", Hibernate.LONG ) ); registerFunction( "lower", new StandardSQLFunction( "lower" ) ); registerFunction( "upper", new StandardSQLFunction( "upper" ) ); registerFunction( "lcase", new StandardSQLFunction( "lcase" ) ); registerFunction( "ucase", new StandardSQLFunction( "ucase" ) ); registerFunction( "soundex", new StandardSQLFunction( "soundex", Hibernate.STRING ) ); registerFunction( "ltrim", new StandardSQLFunction( "ltrim" ) ); registerFunction( "rtrim", new StandardSQLFunction( "rtrim" ) ); registerFunction( "reverse", new StandardSQLFunction( "reverse" ) ); registerFunction( "space", new StandardSQLFunction( "space", Hibernate.STRING ) ); registerFunction( "rawtohex", new StandardSQLFunction( "rawtohex" ) ); registerFunction( "hextoraw", new StandardSQLFunction( "hextoraw" ) ); registerFunction( "user", new NoArgSQLFunction( "user", Hibernate.STRING ) ); registerFunction( "database", new NoArgSQLFunction( "database", Hibernate.STRING ) ); registerFunction( "current_date", new NoArgSQLFunction( "current_date", Hibernate.DATE, false ) ); registerFunction( "curdate", new NoArgSQLFunction( "curdate", Hibernate.DATE ) ); registerFunction( "current_timestamp", new NoArgSQLFunction( "current_timestamp", Hibernate.TIMESTAMP, false ) ); registerFunction( "now", new NoArgSQLFunction( "now", Hibernate.TIMESTAMP ) ); registerFunction( "current_time", new NoArgSQLFunction( "current_time", Hibernate.TIME, false ) ); registerFunction( "curtime", new NoArgSQLFunction( "curtime", Hibernate.TIME ) ); registerFunction( "day", new StandardSQLFunction( "day", Hibernate.INTEGER ) ); registerFunction( "dayofweek", new StandardSQLFunction( "dayofweek", Hibernate.INTEGER ) ); registerFunction( "dayofyear", new StandardSQLFunction( "dayofyear", Hibernate.INTEGER ) ); registerFunction( "dayofmonth", new StandardSQLFunction( "dayofmonth", Hibernate.INTEGER ) ); registerFunction( "month", new StandardSQLFunction( "month", Hibernate.INTEGER ) ); registerFunction( "year", new StandardSQLFunction( "year", Hibernate.INTEGER ) ); registerFunction( "week", new StandardSQLFunction( "week", Hibernate.INTEGER ) ); registerFunction( "quater", new StandardSQLFunction( "quater", Hibernate.INTEGER ) ); registerFunction( "hour", new StandardSQLFunction( "hour", Hibernate.INTEGER ) ); registerFunction( "minute", new StandardSQLFunction( "minute", Hibernate.INTEGER ) ); registerFunction( "second", new StandardSQLFunction( "second", Hibernate.INTEGER ) ); registerFunction( "dayname", new StandardSQLFunction( "dayname", Hibernate.STRING ) ); registerFunction( "monthname", new StandardSQLFunction( "monthname", Hibernate.STRING ) ); registerFunction( "abs", new StandardSQLFunction( "abs" ) ); registerFunction( "sign", new StandardSQLFunction( "sign", Hibernate.INTEGER ) ); registerFunction( "acos", new StandardSQLFunction( "acos", Hibernate.DOUBLE ) ); registerFunction( "asin", new StandardSQLFunction( "asin", Hibernate.DOUBLE ) ); registerFunction( "atan", new StandardSQLFunction( "atan", Hibernate.DOUBLE ) ); registerFunction( "cos", new StandardSQLFunction( "cos", Hibernate.DOUBLE ) ); registerFunction( "cot", new StandardSQLFunction( "cot", Hibernate.DOUBLE ) ); registerFunction( "exp", new StandardSQLFunction( "exp", Hibernate.DOUBLE ) ); registerFunction( "log", new StandardSQLFunction( "log", Hibernate.DOUBLE ) ); registerFunction( "log10", new StandardSQLFunction( "log10", Hibernate.DOUBLE ) ); registerFunction( "sin", new StandardSQLFunction( "sin", Hibernate.DOUBLE ) ); registerFunction( "sqrt", new StandardSQLFunction( "sqrt", Hibernate.DOUBLE ) ); registerFunction( "tan", new StandardSQLFunction( "tan", Hibernate.DOUBLE ) ); registerFunction( "pi", new NoArgSQLFunction( "pi", Hibernate.DOUBLE ) ); registerFunction( "rand", new StandardSQLFunction( "rand", Hibernate.FLOAT ) ); registerFunction( "radians", new StandardSQLFunction( "radians", Hibernate.DOUBLE ) ); registerFunction( "degrees", new StandardSQLFunction( "degrees", Hibernate.DOUBLE ) ); registerFunction( "roundmagic", new StandardSQLFunction( "roundmagic" ) ); registerFunction( "ceiling", new StandardSQLFunction( "ceiling" ) ); registerFunction( "floor", new StandardSQLFunction( "floor" ) ); // Multi-param dialect functions... registerFunction( "mod", new StandardSQLFunction( "mod", Hibernate.INTEGER ) ); // function templates registerFunction( "concat", new VarArgsSQLFunction( Hibernate.STRING, "(", "\|\|", ")" ) ); getDefaultProperties().setProperty( Environment.STATEMENT_BATCH_SIZE, DEFAULT_BATCH_SIZE ); }

Constructor:

 public HSQLDialect() {
	  
		super();
		registerColumnType( Types.BIGINT, "bigint" );
		registerColumnType( Types.BINARY, "binary" );
		registerColumnType( Types.BIT, "bit" );
		registerColumnType( Types.CHAR, "char(1)" );
		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.SMALLINT, "smallint" );
		registerColumnType( Types.TINYINT, "tinyint" );
		registerColumnType( Types.TIME, "time" );
		registerColumnType( Types.TIMESTAMP, "timestamp" );
		registerColumnType( Types.VARCHAR, "varchar($l)" );
		registerColumnType( Types.VARBINARY, "varbinary($l)" );
		registerColumnType( Types.NUMERIC, "numeric" );
		//HSQL has no Blob/Clob support .... but just put these here for now!
		registerColumnType( Types.BLOB, "longvarbinary" );
		registerColumnType( Types.CLOB, "longvarchar" );
		registerFunction( "ascii", new StandardSQLFunction( "ascii", Hibernate.INTEGER ) );
		registerFunction( "char", new StandardSQLFunction( "char", Hibernate.CHARACTER ) );
		registerFunction( "length", new StandardSQLFunction( "length", Hibernate.LONG ) );
		registerFunction( "lower", new StandardSQLFunction( "lower" ) );
		registerFunction( "upper", new StandardSQLFunction( "upper" ) );
		registerFunction( "lcase", new StandardSQLFunction( "lcase" ) );
		registerFunction( "ucase", new StandardSQLFunction( "ucase" ) );
		registerFunction( "soundex", new StandardSQLFunction( "soundex", Hibernate.STRING ) );
		registerFunction( "ltrim", new StandardSQLFunction( "ltrim" ) );
		registerFunction( "rtrim", new StandardSQLFunction( "rtrim" ) );
		registerFunction( "reverse", new StandardSQLFunction( "reverse" ) );
		registerFunction( "space", new StandardSQLFunction( "space", Hibernate.STRING ) );
		registerFunction( "rawtohex", new StandardSQLFunction( "rawtohex" ) );
		registerFunction( "hextoraw", new StandardSQLFunction( "hextoraw" ) );
		registerFunction( "user", new NoArgSQLFunction( "user", Hibernate.STRING ) );
		registerFunction( "database", new NoArgSQLFunction( "database", Hibernate.STRING ) );
		registerFunction( "current_date", new NoArgSQLFunction( "current_date", Hibernate.DATE, false ) );
		registerFunction( "curdate", new NoArgSQLFunction( "curdate", Hibernate.DATE ) );
		registerFunction( "current_timestamp", new NoArgSQLFunction( "current_timestamp", Hibernate.TIMESTAMP, false ) );
		registerFunction( "now", new NoArgSQLFunction( "now", Hibernate.TIMESTAMP ) );
		registerFunction( "current_time", new NoArgSQLFunction( "current_time", Hibernate.TIME, false ) );
		registerFunction( "curtime", new NoArgSQLFunction( "curtime", Hibernate.TIME ) );
		registerFunction( "day", new StandardSQLFunction( "day", Hibernate.INTEGER ) );
		registerFunction( "dayofweek", new StandardSQLFunction( "dayofweek", Hibernate.INTEGER ) );
		registerFunction( "dayofyear", new StandardSQLFunction( "dayofyear", Hibernate.INTEGER ) );
		registerFunction( "dayofmonth", new StandardSQLFunction( "dayofmonth", Hibernate.INTEGER ) );
		registerFunction( "month", new StandardSQLFunction( "month", Hibernate.INTEGER ) );
		registerFunction( "year", new StandardSQLFunction( "year", Hibernate.INTEGER ) );
		registerFunction( "week", new StandardSQLFunction( "week", Hibernate.INTEGER ) );
		registerFunction( "quater", new StandardSQLFunction( "quater", Hibernate.INTEGER ) );
		registerFunction( "hour", new StandardSQLFunction( "hour", Hibernate.INTEGER ) );
		registerFunction( "minute", new StandardSQLFunction( "minute", Hibernate.INTEGER ) );
		registerFunction( "second", new StandardSQLFunction( "second", Hibernate.INTEGER ) );
		registerFunction( "dayname", new StandardSQLFunction( "dayname", Hibernate.STRING ) );
		registerFunction( "monthname", new StandardSQLFunction( "monthname", Hibernate.STRING ) );
		registerFunction( "abs", new StandardSQLFunction( "abs" ) );
		registerFunction( "sign", new StandardSQLFunction( "sign", Hibernate.INTEGER ) );
		registerFunction( "acos", new StandardSQLFunction( "acos", Hibernate.DOUBLE ) );
		registerFunction( "asin", new StandardSQLFunction( "asin", Hibernate.DOUBLE ) );
		registerFunction( "atan", new StandardSQLFunction( "atan", Hibernate.DOUBLE ) );
		registerFunction( "cos", new StandardSQLFunction( "cos", Hibernate.DOUBLE ) );
		registerFunction( "cot", new StandardSQLFunction( "cot", Hibernate.DOUBLE ) );
		registerFunction( "exp", new StandardSQLFunction( "exp", Hibernate.DOUBLE ) );
		registerFunction( "log", new StandardSQLFunction( "log", Hibernate.DOUBLE ) );
		registerFunction( "log10", new StandardSQLFunction( "log10", Hibernate.DOUBLE ) );
		registerFunction( "sin", new StandardSQLFunction( "sin", Hibernate.DOUBLE ) );
		registerFunction( "sqrt", new StandardSQLFunction( "sqrt", Hibernate.DOUBLE ) );
		registerFunction( "tan", new StandardSQLFunction( "tan", Hibernate.DOUBLE ) );
		registerFunction( "pi", new NoArgSQLFunction( "pi", Hibernate.DOUBLE ) );
		registerFunction( "rand", new StandardSQLFunction( "rand", Hibernate.FLOAT ) );
		registerFunction( "radians", new StandardSQLFunction( "radians", Hibernate.DOUBLE ) );
		registerFunction( "degrees", new StandardSQLFunction( "degrees", Hibernate.DOUBLE ) );
		registerFunction( "roundmagic", new StandardSQLFunction( "roundmagic" ) );
		registerFunction( "ceiling", new StandardSQLFunction( "ceiling" ) );
		registerFunction( "floor", new StandardSQLFunction( "floor" ) );
		// Multi-param dialect functions...
		registerFunction( "mod", new StandardSQLFunction( "mod", Hibernate.INTEGER ) );
		// function templates
		registerFunction( "concat", new VarArgsSQLFunction( Hibernate.STRING, "(", "||", ")" ) );
		getDefaultProperties().setProperty( Environment.STATEMENT_BATCH_SIZE, DEFAULT_BATCH_SIZE );
}

Method from org.hibernate.dialect.HSQLDialect Summary:
bindLimitParametersFirst, getAddColumnString, getCreateSequenceString, getDropSequenceString, getForUpdateString, getIdentityColumnString, getIdentityInsertString, getIdentitySelectString, getLimitString, getLockingStrategy, getQuerySequencesString, getSelectSequenceNextValString, getSequenceNextValString, getViolatedConstraintNameExtracter, supportsColumnCheck, supportsCurrentTimestampSelection, supportsEmptyInList, supportsIdentityColumns, supportsIfExistsAfterTableName, supportsLimit, supportsLobValueChangePropogation, supportsPooledSequences, supportsSequences, supportsTemporaryTables, supportsUnique

Method from org.hibernate.dialect.HSQLDialect Summary:

bindLimitParametersFirst, getAddColumnString, getCreateSequenceString, getDropSequenceString, getForUpdateString, getIdentityColumnString, getIdentityInsertString, getIdentitySelectString, getLimitString, getLockingStrategy, getQuerySequencesString, getSelectSequenceNextValString, getSequenceNextValString, getViolatedConstraintNameExtracter, supportsColumnCheck, supportsCurrentTimestampSelection, supportsEmptyInList, supportsIdentityColumns, supportsIfExistsAfterTableName, supportsLimit, supportsLobValueChangePropogation, supportsPooledSequences, supportsSequences, supportsTemporaryTables, supportsUnique

Methods from org.hibernate.dialect.Dialect:
appendIdentitySelectToInsert, appendLockHint, applyLocksToSql, areStringComparisonsCaseInsensitive, bindLimitParametersFirst, bindLimitParametersInReverseOrder, buildSQLExceptionConverter, closeQuote, createCaseFragment, createOuterJoinFragment, doesReadCommittedCauseWritersToBlockReaders, doesRepeatableReadCauseReadersToBlockWriters, dropConstraints, dropTemporaryTableAfterUse, forUpdateOfColumns, forceLimitUsage, generateTemporaryTableName, getAddColumnString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getCascadeConstraintsString, getCastTypeName, getColumnComment, getCreateMultisetTableString, getCreateSequenceString, getCreateSequenceString, getCreateSequenceStrings, getCreateSequenceStrings, getCreateTableString, getCreateTemporaryTablePostfix, getCreateTemporaryTableString, getCurrentTimestampSQLFunctionName, getCurrentTimestampSelectString, getDefaultProperties, getDialect, getDialect, getDropForeignKeyString, getDropSequenceString, getDropSequenceStrings, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateString, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIdentityColumnString, getIdentityColumnString, getIdentityInsertString, getIdentitySelectString, getIdentitySelectString, getKeywords, getLimitString, getLimitString, getLockingStrategy, getLowercaseFunction, getMaxAliasLength, getNativeIdentifierGeneratorClass, getNoColumnsInsertString, getNullColumnString, getQuerySequencesString, getResultSet, getSelectClauseNullString, getSelectGUIDString, getSelectSequenceNextValString, getSequenceNextValString, getTableComment, getTableTypeString, getTypeName, getTypeName, getViolatedConstraintNameExtracter, hasAlterTable, hasDataTypeInIdentityColumn, hasSelfReferentialForeignKeyBug, isCurrentTimestampSelectStringCallable, openQuote, performTemporaryTableDDLInIsolation, qualifyIndexName, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, registerResultSetOutParameter, requiresCastingOfParametersInSelectClause, supportsBindAsCallableArgument, supportsCascadeDelete, supportsCircularCascadeDeleteConstraints, supportsColumnCheck, supportsCommentOn, supportsCurrentTimestampSelection, supportsEmptyInList, supportsExistsInSelect, supportsExpectedLobUsagePattern, supportsIdentityColumns, supportsIfExistsAfterTableName, supportsIfExistsBeforeTableName, supportsInsertSelectIdentity, supportsLimit, supportsLimitOffset, supportsLobValueChangePropogation, supportsNotNullUnique, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsPooledSequences, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsRowValueConstructorSyntax, supportsRowValueConstructorSyntaxInInList, supportsSequences, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTableCheck, supportsTemporaryTables, supportsUnboundedLobLocatorMaterialization, supportsUnionAll, supportsUnique, supportsUniqueConstraintInCreateAlterTable, supportsVariableLimit, toBooleanValueString, toString, transformSelectString, useInputStreamToInsertBlob, useMaxForLimit

Methods from org.hibernate.dialect.Dialect:

appendIdentitySelectToInsert, appendLockHint, applyLocksToSql, areStringComparisonsCaseInsensitive, bindLimitParametersFirst, bindLimitParametersInReverseOrder, buildSQLExceptionConverter, closeQuote, createCaseFragment, createOuterJoinFragment, doesReadCommittedCauseWritersToBlockReaders, doesRepeatableReadCauseReadersToBlockWriters, dropConstraints, dropTemporaryTableAfterUse, forUpdateOfColumns, forceLimitUsage, generateTemporaryTableName, getAddColumnString, getAddForeignKeyConstraintString, getAddPrimaryKeyConstraintString, getCascadeConstraintsString, getCastTypeName, getColumnComment, getCreateMultisetTableString, getCreateSequenceString, getCreateSequenceString, getCreateSequenceStrings, getCreateSequenceStrings, getCreateTableString, getCreateTemporaryTablePostfix, getCreateTemporaryTableString, getCurrentTimestampSQLFunctionName, getCurrentTimestampSelectString, getDefaultProperties, getDialect, getDialect, getDropForeignKeyString, getDropSequenceString, getDropSequenceStrings, getForUpdateNowaitString, getForUpdateNowaitString, getForUpdateString, getForUpdateString, getForUpdateString, getFunctions, getHibernateTypeName, getHibernateTypeName, getIdentityColumnString, getIdentityColumnString, getIdentityInsertString, getIdentitySelectString, getIdentitySelectString, getKeywords, getLimitString, getLimitString, getLockingStrategy, getLowercaseFunction, getMaxAliasLength, getNativeIdentifierGeneratorClass, getNoColumnsInsertString, getNullColumnString, getQuerySequencesString, getResultSet, getSelectClauseNullString, getSelectGUIDString, getSelectSequenceNextValString, getSequenceNextValString, getTableComment, getTableTypeString, getTypeName, getTypeName, getViolatedConstraintNameExtracter, hasAlterTable, hasDataTypeInIdentityColumn, hasSelfReferentialForeignKeyBug, isCurrentTimestampSelectStringCallable, openQuote, performTemporaryTableDDLInIsolation, qualifyIndexName, quote, registerColumnType, registerColumnType, registerFunction, registerHibernateType, registerHibernateType, registerKeyword, registerResultSetOutParameter, requiresCastingOfParametersInSelectClause, supportsBindAsCallableArgument, supportsCascadeDelete, supportsCircularCascadeDeleteConstraints, supportsColumnCheck, supportsCommentOn, supportsCurrentTimestampSelection, supportsEmptyInList, supportsExistsInSelect, supportsExpectedLobUsagePattern, supportsIdentityColumns, supportsIfExistsAfterTableName, supportsIfExistsBeforeTableName, supportsInsertSelectIdentity, supportsLimit, supportsLimitOffset, supportsLobValueChangePropogation, supportsNotNullUnique, supportsOuterJoinForUpdate, supportsParametersInInsertSelect, supportsPooledSequences, supportsResultSetPositionQueryMethodsOnForwardOnlyCursor, supportsRowValueConstructorSyntax, supportsRowValueConstructorSyntaxInInList, supportsSequences, supportsSubqueryOnMutatingTable, supportsSubselectAsInPredicateLHS, supportsTableCheck, supportsTemporaryTables, supportsUnboundedLobLocatorMaterialization, supportsUnionAll, supportsUnique, supportsUniqueConstraintInCreateAlterTable, supportsVariableLimit, toBooleanValueString, toString, transformSelectString, useInputStreamToInsertBlob, useMaxForLimit

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.hibernate.dialect.HSQLDialect Detail:
public boolean bindLimitParametersFirst() { return true; }
public String getAddColumnString() { return "add column"; }
protected String getCreateSequenceString(String sequenceName) { return "create sequence " + sequenceName; }
protected String getDropSequenceString(String sequenceName) { return "drop sequence " + sequenceName; }
public String getForUpdateString() { return ""; }
public String getIdentityColumnString() { return "generated by default as identity (start with 1)"; //not null is implicit }
public String getIdentityInsertString() { return "null"; }
public String getIdentitySelectString() { return "call identity()"; }
public String getLimitString(String sql, boolean hasOffset) { return new StringBuffer( sql.length() + 10 ) .append( sql ) .insert( sql.toLowerCase().indexOf( "select" ) + 6, hasOffset ? " limit ? ?" : " top ?" ) .toString(); }
public LockingStrategy getLockingStrategy(Lockable lockable, LockMode lockMode) { // HSQLDB only supports READ_UNCOMMITTED transaction isolation return new ReadUncommittedLockingStrategy( lockable, lockMode ); }
public String getQuerySequencesString() { // this assumes schema support, which is present in 1.8.0 and later... return "select sequence_name from information_schema.system_sequences"; }
public String getSelectSequenceNextValString(String sequenceName) { return "next value for " + sequenceName; }
public String getSequenceNextValString(String sequenceName) { return "call next value for " + sequenceName; }
public ViolatedConstraintNameExtracter getViolatedConstraintNameExtracter() { return EXTRACTER; }
public boolean supportsColumnCheck() { return false; }
public boolean supportsCurrentTimestampSelection() { return false; }
public boolean supportsEmptyInList() { return false; }
public boolean supportsIdentityColumns() { return true; }
public boolean supportsIfExistsAfterTableName() { return true; }
public boolean supportsLimit() { return true; }
public boolean supportsLobValueChangePropogation() { return false; }
public boolean supportsPooledSequences() { return true; }
public boolean supportsSequences() { return true; }
public boolean supportsTemporaryTables() { return true; } HSQL does not really support temp tables; just take advantage of the fact that it is a single user db...
public boolean supportsUnique() { return false; }