The mozIStorageStatementWrapper interface is a storage statement wrapper. When you call the mozIStorageConnection interface's createStatement() method, you get a mozIStorageStatement which has just direct bindings to SQLITE. You can then wrap that statement with a wrapper, which implements nsIXPCScriptable and provides scriptable helpers letting you execute the statement as a function, access bind variables by name as properties, etc.
Firefox 3.5 adds support for these features directly into the mozIStorageStatement interface, so this interface is essentially deprecated.
Inherits from: nsISupports
Method overview
void initialize(in mozIStorageStatement aStatement); |
void reset(); |
boolean step(); |
void execute(); |
Attributes
| Attribute | Type | Description |
statement |
mozIStorageStatement |
The statement that is wrapped. |
row |
mozIStorageStatementRow |
The current row. Throws an exception if no row is currently available. Useful only from script. The value of this is only valid while the statement is still executing, and is still on the appropriate row. |
params |
mozIStorageStatementParams |
The parameters; these can be set in lieu of using the call notation on this. |
Methods
initialize()
This method initializes this wrapper with aStatement.
void initialize( in mozIStorageStatement aStatement );
Parameters
-
aStatement - The statement to be initialized.
reset()
This method resets the wrapped statement.
void reset();
Parameters
None.
step()
This method steps the wrapped statement.
boolean step();
Parameters
None.
Return value
Returns true if the stepping the wrapped statement was successful, otherwise returns false.
execute()
This method executes the wrapped statement.
void execute();
Parameters
None.