XmlReader
public interface RowSetReader
RowSet
object calls on to populate itself with rows of data. A reader (an object implementing the RowSetReader
interface) may be registered with a RowSet
object that supports the reader/writer paradigm. When the RowSet
object's execute
method is called, it in turn calls the reader's readData
method.Modifier and Type | Method | Description |
---|---|---|
void |
readData |
Reads the new contents of the calling RowSet object. |
void readData(RowSetInternal caller) throws SQLException
RowSet
object. In order to call this method, a RowSet
object must have implemented the RowSetInternal
interface and registered this RowSetReader
object as its reader. The readData
method is invoked internally by the RowSet.execute
method for rowsets that support the reader/writer paradigm. The readData
method adds rows to the caller. It can be implemented in a wide variety of ways and can even populate the caller with rows from a nonrelational data source. In general, a reader may invoke any of the rowset's methods, with one exception. Calling the method execute
will cause an SQLException
to be thrown because execute
may not be called recursively. Also, when a reader invokes RowSet
methods, no listeners are notified; that is, no RowSetEvent
objects are generated and no RowSetListener
methods are invoked. This is true because listeners are already being notified by the method execute
.
caller
- the RowSet
object (1) that has implemented the RowSetInternal
interface, (2) with which this reader is registered, and (3) whose execute
method called this readerSQLException
- if a database access error occurs or this method invokes the RowSet.execute
method
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https://docs.oracle.com/en/java/javase/21/docs/api/java.sql/javax/sql/RowSetReader.html