| org.h2.api.Trigger
All known Subclasses: org.h2.test.db.TestRunscript, org.h2.fulltext.FullTextLucene, org.h2.fulltext.FullText, org.h2.test.db.TestTriggersConstraints,
| Trigger | | public interface Trigger (Code) | | A class that implements this interface can be used as a trigger.
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| Field Summary | |
| int | DELETE
The trigger is called for DELETE statements. | | int | INSERT
The trigger is called for INSERT statements. | | int | UPDATE
The trigger is called for UPDATE statements. |
| Method Summary | |
| void | fire(Connection conn, Object[] oldRow, Object[] newRow)
This method is called for each triggered action. | | 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. |
| DELETE | | int DELETE(Code) | | The trigger is called for DELETE statements.
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| INSERT | | int INSERT(Code) | | The trigger is called for INSERT statements.
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| UPDATE | | int UPDATE(Code) | | The trigger is called for UPDATE statements.
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| fire | | void fire(Connection conn, Object[] oldRow, Object[] newRow) throws SQLException(Code) | | This method is called for each triggered action.
Parameters:
conn - a connection to the database
Parameters:
oldRow - the old row, or null if no old row is available (for INSERT)
Parameters:
newRow - the new row, or null if no new row is available (for DELETE)
throws:
SQLException - if the operation must be undone |
| init | | void init(Connection conn, String schemaName, String triggerName, String tableName, boolean before, int type) throws SQLException(Code) | | This method is called by the database engine once when initializing the
trigger.
Parameters:
conn - a connection to the database
Parameters:
schemaName - the name of the schema
Parameters:
triggerName - the name of the trigger used in the CREATE TRIGGER statement
Parameters:
tableName - the name of the table
Parameters:
before - whether the fire method is called before or after theoperation is performed
Parameters:
type - the operation type: INSERT, UPDATE, or DELETE |
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