org.richfaces.component.DataTableColumnsIterator Maven / Gradle / Ivy
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*
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* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
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*
* This software is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
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*/
package org.richfaces.component;
import java.util.Iterator;
import javax.faces.component.UIColumn;
import javax.faces.component.UIComponent;
import com.google.common.collect.AbstractIterator;
/**
* Iterator for all children table columns.
*
* @author asmirnov
*
*/
class DataTableColumnsIterator extends AbstractIterator {
private Iterator childrenIterator;
public DataTableColumnsIterator(UIComponent component) {
super();
this.childrenIterator = component.getChildren().iterator();
}
@Override
protected UIComponent computeNext() {
while (childrenIterator.hasNext()) {
UIComponent child = childrenIterator.next();
if (child instanceof UIColumn || child instanceof Column) {
return child;
}
}
return endOfData();
}
}