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/*
Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; version 2
of the License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this
program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth
Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.jdbc;
import java.sql.SQLException;
import java.util.Iterator;
import com.mysql.jdbc.DatabaseMetaData.IteratorWithCleanup;
public abstract class IterateBlock<T> {
IteratorWithCleanup<T> iteratorWithCleanup;
Iterator<T> javaIterator;
boolean stopIterating = false;
IterateBlock(IteratorWithCleanup<T> i) {
this.iteratorWithCleanup = i;
this.javaIterator = null;
}
IterateBlock(Iterator<T> i) {
this.javaIterator = i;
this.iteratorWithCleanup = null;
}
public void doForAll() throws SQLException {
if (this.iteratorWithCleanup != null) {
try {
while (this.iteratorWithCleanup.hasNext()) {
forEach(this.iteratorWithCleanup.next());
if (this.stopIterating) {
break;
}
}
} finally {
this.iteratorWithCleanup.close();
}
} else {
while (this.javaIterator.hasNext()) {
forEach(this.javaIterator.next());
if (this.stopIterating) {
break;
}
}
}
}
abstract void forEach(T each) throws SQLException;
public final boolean fullIteration() {
return !this.stopIterating;
}
}