TriggerA class that implements this interface can be used as a trigger.
void fire(Connection conn, Object[] oldRow, Object[] newRow) throws SQLExceptionThis method is called for each triggered action.Parameters:
conn - a connection to the database
oldRow - 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)
Throws:
SQLException - if the operation must be undone
void init(Connection conn, String schemaName, String triggerName, String tableName, boolean before, int type) throws SQLExceptionThis method is called by the database engine once when initializing the trigger.Parameters:
conn - a connection to the database
schemaName - the name of the schema
triggerName - the name of the trigger used in the CREATE TRIGGER statement
tableName - the name of the table
before - whether the fire method is called before or after the
operation is performed
type - the operation type: INSERT, UPDATE, or DELETE
INSERT = 1The trigger is called for INSERT statements.
UPDATE = 2The trigger is called for UPDATE statements.
DELETE = 4The trigger is called for DELETE statements.
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