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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.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* An interface provided by a {@code RowSet} object to let either a {@code
* RowSetReader} or a {@code RowSetWriter} access its internal state, thereby
* providing facilities to read and update the state of the {@code RowSet}.
*/
public interface RowSetInternal {
/**
* Gets the connection associated with this {@code RowSet} object.
*
* @return the connection or {@code null}.
* @throws SQLException
* if there is a problem accessing the database.
*/
public Connection getConnection() throws SQLException;
/**
* Gets the {@code ResultSet} that was the original (unmodified) content of
* the {@code RowSet}.
* <p>
* The {@code ResultSet}'s cursor is positioned before the first row of
* data.
*
* @return the {@code ResultSet} that contained the original data value of
* the {@code RowSet}.
* @throws SQLException
* if there is a problem accessing the database.
*/
public ResultSet getOriginal() throws SQLException;
/**
* Gets the original value of the current row only. If the current row did
* not have an original value, then an empty value is returned.
*
* @return a {@code ResultSet} containing the value of the current row only.
* @throws SQLException
* if there is a problem accessing the database, or if the
* cursor is not on a valid row (before the first row, after the
* last one or pointing to the insert row).
*/
public ResultSet getOriginalRow() throws SQLException;
/**
* Gets the parameter values that have been set for this {@code RowSet}'s
* command.
*
* @return the values of parameters that have been set.
* @throws SQLException
* if there is a problem accessing the database.
*/
public Object[] getParams() throws SQLException;
/**
* Sets {@code RowSetMetaData} for this {@code RowSet}. The {@code
* RowSetMetaData} is used by a {@code RowSetReader} to set values giving
* information about the {@code RowSet}'s columns.
*
* @param theMetaData
* holds the metadata about the {@code RowSet}'s columns.
* @throws SQLException
* if there is a problem accessing the database.
*/
public void setMetaData(RowSetMetaData theMetaData) throws SQLException;
}
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