Constructor and Description |
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TriggerAdapter() |
Modifier and Type | Method and Description |
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void |
close()
This method is called when the trigger is dropped.
|
void |
fire(Connection conn,
Object[] oldRow,
Object[] newRow)
This method is called for each triggered action.
|
abstract void |
fire(Connection conn,
ResultSet oldRow,
ResultSet newRow)
This method is called for each triggered action by the default
fire(Connection conn, Object[] oldRow, Object[] newRow) method.
|
void |
init(Connection conn,
String schemaName,
String triggerName,
String tableName,
boolean before,
int type)
This method is called by the database engine once when initializing the
trigger.
|
void |
remove()
This method is called when the database is closed.
|
public void init(Connection conn, String schemaName, String triggerName, String tableName, boolean before, int type) throws SQLException
init
in interface Trigger
conn
- a connection to the databaseschemaName
- the name of the schematriggerName
- the name of the trigger used in the CREATE TRIGGER
statementtableName
- the name of the tablebefore
- whether the fire method is called before or after the
operation is performedtype
- the operation type: INSERT, UPDATE, or DELETESQLException
public void fire(Connection conn, Object[] oldRow, Object[] newRow) throws SQLException
The row arrays contain all columns of the table, in the same order as defined in the table.
The default implementation calls the fire method with the ResultSet parameters.
fire
in interface Trigger
conn
- a connection to the databaseoldRow
- the old row, or null if no old row is available (for
INSERT)newRow
- the new row, or null if no new row is available (for
DELETE)SQLException
- if the operation must be undonepublic abstract void fire(Connection conn, ResultSet oldRow, ResultSet newRow) throws SQLException
conn
- a connection to the databaseoldRow
- the old row, or null if no old row is available (for
INSERT)newRow
- the new row, or null if no new row is available (for
DELETE)SQLException
- if the operation must be undonepublic void remove() throws SQLException
remove
in interface Trigger
SQLException
public void close() throws SQLException
close
in interface Trigger
SQLException
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