org.datavec.api.util.jdbc.ResettableResultSetIterator Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://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.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
package org.datavec.api.util.jdbc;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Iterator;
import org.apache.commons.dbutils.ResultSetIterator;
/**
* Encapsulation of ResultSetIterator to allow resetting
*
* @author Adrien Plagnol
*/
public class ResettableResultSetIterator implements Iterator {
private ResultSet rs;
private ResultSetIterator base;
public ResettableResultSetIterator(ResultSet rs) {
this.rs = rs;
this.base = new ResultSetIterator(rs);
}
public void reset() {
try {
this.rs.beforeFirst();
} catch (SQLException e) {
throw new RuntimeException("Could not reset ResultSetIterator", e);
}
}
@Override
public boolean hasNext() {
return this.base.hasNext();
}
@Override
public Object[] next() {
return base.next();
}
@Override
public void remove() {
base.remove();
}
}