javax.sql.RowSetReader Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.sql;
import java.sql.SQLException;
/**
* An interface which provides functionality for a disconnected {@code RowSet}
* to get data from a database into its rows. The {@code RowSet} calls the
* {@code RowSetReader} interface when the {@code RowSet}'s execute method is
* invoked - a {@code RowSetReader} must first be registered with the {@code
* RowSet} for this to work.
*
* @see RowSet
*/
public interface RowSetReader {
/**
* Reads new data into the {@code RowSet}. The calling {@code RowSet} object
* must itself implement the {@code RowSetInternal} interface and the
* {@code RowSetReader} must be registered as a reader on the
* {@code RowSet}.
*
* This method adds rows into the calling {@code RowSet}. The reader may
* invoke any of the {@code RowSet}'s methods except for the {@code execute}
* method (calling {@code execute} will cause an {@code SQLException} to be
* thrown). However, when the reader calls the {@code RowSet}'s methods, no
* events are sent to listeners - any listeners are informed by the calling
* {@code RowSet}'s {@code execute} method once the reader returns from the
* {@code readData} method.
*
* @param theCaller
* must be the calling {@code RowSet} object, which must have
* implemented the {@code RowSetInternal} interface.
* @throws SQLException
* if a problem occurs accessing the database or if the reader
* calls the {@link RowSet#execute()} method.
* @see RowSetInternal
*/
public void readData(RowSetInternal theCaller) throws SQLException;
}