com.logicbus.kvalue.xscript.set.KVSCard Maven / Gradle / Ivy
package com.logicbus.kvalue.xscript.set;
import java.util.Map;
import com.alogic.xscript.ExecuteWatcher;
import com.alogic.xscript.Logiclet;
import com.alogic.xscript.LogicletContext;
import com.logicbus.kvalue.xscript.KVRowOperation;
import com.anysoft.util.Properties;
import com.logicbus.kvalue.core.KeyValueRow;
import com.logicbus.kvalue.core.SetRow;
/**返回集合 key 的基数(集合中元素的数量).
*
* @author zhongyi
*
*/
public class KVSCard extends KVRowOperation {
public KVSCard(String tag, Logiclet p) {
super(tag, p);
}
@Override
public void configure(Properties p) {
super.configure(p);
}
@Override
protected void onExecute(KeyValueRow row, Map root, Map current,
LogicletContext ctx, ExecuteWatcher watcher) {
if (row instanceof SetRow) {
SetRow r = (SetRow) row;
ctx.SetValue(id, String.valueOf(r.size()));
}
}
}