package org.nutz.dao.util.cri;
import org.nutz.dao.entity.Entity;
public class IsNull extends NoParamsSqlExpression {
public IsNull(String name) {
super(name);
this.not = false;
}
public void joinSql(Entity<?> en, StringBuilder sb) {
sb.append(_fmtcol(en));
sb.append(" IS ");
if (not)
sb.append("NOT ");
sb.append("NULL ");
}
}