org.postgresql.pljava.internal
Class TriggerData
- TriggerData
The TriggerData
correspons to the internal PostgreSQL TriggerData
.
protected void | _free(long pointer)
|
String[] | getArguments() - Returns the arguments for this trigger (as declared in the
CREATE TRIGGER
statement.
|
String | getName() - Returns the name of the trigger (as declared in the
CREATE TRIGGER
statement).
|
ResultSet | getNew() - Returns the ResultSet that represents the new row.
|
Tuple | getNewTuple() - Returns a
Tuple reflecting the new version of the row, if
the trigger was fired for an UPDATE , and null
if it is for an INSERT or a DELETE .
|
ResultSet | getOld() - Returns the ResultSet that represents the old row.
|
Relation | getRelation() - Returns a descriptor for the Tuples exposed by this trigger.
|
String | getSchemaName()
|
String | getTableName()
|
long | getTriggerReturnTuple() - Commits the changes made on the
ResultSet representing
new and returns the native pointer of new tuple.
|
Tuple | getTriggerTuple() - Returns a
Tuple reflecting the row for which the trigger
was fired.
|
boolean | isFiredAfter() - Returns
true if the trigger was fired after the statement
or row action that it is associated with.
|
boolean | isFiredBefore() - Returns
true if the trigger was fired before the
statement or row action that it is associated with.
|
boolean | isFiredByDelete() - Returns
true if this trigger was fired by a DELETE .
|
boolean | isFiredByInsert() - Returns
true if this trigger was fired by an INSERT .
|
boolean | isFiredByUpdate() - Returns
true if this trigger was fired by an UPDATE .
|
boolean | isFiredForEachRow() - Returns
true if this trigger is fired once for each row
(as opposed to once for the entire statement).
|
boolean | isFiredForStatement() - Returns
true if this trigger is fired once for the entire
statement (as opposed to once for each row).
|
getArguments
public String[] getArguments()
throws SQLException
Returns the arguments for this trigger (as declared in the CREATE TRIGGER
statement. If the trigger has no arguments, this method will return an
array with size 0.
- getArguments in interface TriggerData
getName
public String getName()
throws SQLException
Returns the name of the trigger (as declared in the CREATE TRIGGER
statement).
- getName in interface TriggerData
getNew
public ResultSet getNew()
throws SQLException
Returns the ResultSet that represents the new row. This ResultSet will
be null for delete triggers and for triggers that was fired for
statement.
The returned set will be updateable and positioned on a
valid row.
- getNew in interface TriggerData
- An updateable
ResultSet
containing one row or
null
.
getNewTuple
public Tuple getNewTuple()
throws SQLException
Returns a Tuple
reflecting the new version of the row, if
the trigger was fired for an UPDATE
, and null
if it is for an INSERT
or a DELETE
. This
is what you have to return from the function if the event is an UPDATE
and you don't want to replace this row by a different one or skip the
operation.
getOld
public ResultSet getOld()
throws SQLException
Returns the ResultSet that represents the old row. This ResultSet will
be null for insert triggers and for triggers that was fired for
statement.
The returned set will be read-only and positioned on a
valid row.
- getOld in interface TriggerData
- A read-only
ResultSet
containing one row or
null
.
getRelation
public Relation getRelation()
throws SQLException
Returns a descriptor for the Tuples exposed by this trigger.
getTriggerReturnTuple
public long getTriggerReturnTuple()
throws SQLException
Commits the changes made on the ResultSet
representing
new
and returns the native pointer of new tuple. This
method is called automatically by the trigger handler and should not
be called in any other way.
- The modified tuple, or if no modifications have been made, the
original tuple.
getTriggerTuple
public Tuple getTriggerTuple()
throws SQLException
Returns a Tuple
reflecting the row for which the trigger
was fired. This is the row being inserted, updated, or deleted. If this
trigger was fired for an
INSERT
or DELETE
then this is what you should return to from the method if you don't want
to replace the row with a different one (in the case of INSERT
)
or skip the operation.
isFiredAfter
public boolean isFiredAfter()
throws SQLException
Returns true
if the trigger was fired after the statement
or row action that it is associated with.
- isFiredAfter in interface TriggerData
isFiredBefore
public boolean isFiredBefore()
throws SQLException
Returns true
if the trigger was fired before the
statement or row action that it is associated with.
- isFiredBefore in interface TriggerData
isFiredByDelete
public boolean isFiredByDelete()
throws SQLException
Returns true
if this trigger was fired by a DELETE
.
- isFiredByDelete in interface TriggerData
isFiredByInsert
public boolean isFiredByInsert()
throws SQLException
Returns true
if this trigger was fired by an INSERT
.
- isFiredByInsert in interface TriggerData
isFiredByUpdate
public boolean isFiredByUpdate()
throws SQLException
Returns true
if this trigger was fired by an UPDATE
.
- isFiredByUpdate in interface TriggerData
isFiredForEachRow
public boolean isFiredForEachRow()
throws SQLException
Returns true
if this trigger is fired once for each row
(as opposed to once for the entire statement).
- isFiredForEachRow in interface TriggerData
isFiredForStatement
public boolean isFiredForStatement()
throws SQLException
Returns true
if this trigger is fired once for the entire
statement (as opposed to once for each row).
- isFiredForStatement in interface TriggerData
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