FrontBaseDialectpublic class FrontBaseDialect extends Dialect | An SQL Dialect for Frontbase. Assumes you're using the latest version
of the FrontBase JDBC driver, available from http://frontbase.com/
NOTE: The latest JDBC driver is not always included with the
latest release of FrontBase. Download the driver separately, and enjoy
the informative release notes.
This dialect was tested with JDBC driver version 2.3.1. This driver
contains a bug that causes batches of updates to fail. (The bug should be
fixed in the next release of the JDBC driver.) If you are using JDBC driver
2.3.1, you can work-around this problem by setting the following in your
hibernate.properties file: hibernate.jdbc.batch_size=15 |
| Constructors Summary |
|---|
public FrontBaseDialect()
super();
registerColumnType( Types.BIT, "bit" );
registerColumnType( Types.BIGINT, "longint" );
registerColumnType( Types.SMALLINT, "smallint" );
registerColumnType( Types.TINYINT, "tinyint" );
registerColumnType( Types.INTEGER, "integer" );
registerColumnType( Types.CHAR, "char(1)" );
registerColumnType( Types.VARCHAR, "varchar($l)" );
registerColumnType( Types.FLOAT, "float" );
registerColumnType( Types.DOUBLE, "double precision" );
registerColumnType( Types.DATE, "date" );
registerColumnType( Types.TIME, "time" );
registerColumnType( Types.TIMESTAMP, "timestamp" );
registerColumnType( Types.VARBINARY, "bit varying($l)" );
registerColumnType( Types.NUMERIC, "numeric($p,$s)" );
registerColumnType( Types.BLOB, "blob" );
registerColumnType( Types.CLOB, "clob" );
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| Methods Summary |
|---|
| public boolean | dropConstraints()
return false;
| | public java.lang.String | getAddColumnString()
return "add column";
| | public java.lang.String | getCascadeConstraintsString()
return " cascade";
| | public java.lang.String | getCurrentTimestampCallString()
// TODO : not sure this is correct, could not find docs on how to do this.
return "{?= call current_timestamp}";
| | public java.lang.String | getForUpdateString()Does this dialect support the FOR UPDATE syntax. No!
return "";
| | public org.hibernate.dialect.lock.LockingStrategy | getLockingStrategy(org.hibernate.persister.entity.Lockable lockable, org.hibernate.LockMode lockMode)
// Frontbase has no known variation of a "SELECT ... FOR UPDATE" syntax...
if ( lockMode.greaterThan( LockMode.READ ) ) {
return new UpdateLockingStrategy( lockable, lockMode );
}
else {
return new SelectLockingStrategy( lockable, lockMode );
}
| | public boolean | isCurrentTimestampSelectStringCallable()
return true;
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