package gudusoft.gsqlparser.nodes;

import gudusoft.gsqlparser.ESqlClause;
import gudusoft.gsqlparser.TBaseType;
import gudusoft.gsqlparser.TCustomSqlStatement;
import gudusoft.gsqlparser.TSourceToken;

/**
 * Oracle keep dense rank clause used in analytic function.
 */
public class TKeepDenseRankClause extends TParseTreeNode {
    private TOrderBy orderBy;
    private TSourceToken firstLast;
    private boolean isFirst  = false;
    private boolean isLast = false;

    public void setFirst(boolean isFirst) {
        this.isFirst = isFirst;
    }

    public void setLast(boolean isLast) {
        this.isLast = isLast;
    }

    public TSourceToken getFirstLast() {
        return firstLast;
    }

    public void init(Object arg1,Object arg2)
    {
       firstLast = (TSourceToken)arg1;
        if (firstLast.toString().equalsIgnoreCase("first")){
            isFirst = true;
        }else{
            isLast = true;
        }

        orderBy = (TOrderBy)arg2;
    }

    public boolean isFirst() {
        return isFirst;
    }

    public boolean isLast() {
        return isLast;
    }

    public TOrderBy getOrderBy() {
        return orderBy;
    }

    public void doParse(TCustomSqlStatement psql, ESqlClause plocation){
        orderBy.doParse(psql,plocation);
    }

    public void accept(TParseTreeVisitor v){
        v.preVisit(this);
        v.postVisit(this);
    }

    public void acceptChildren(TParseTreeVisitor v){
        v.preVisit(this);
        orderBy.acceptChildren(v);
        v.postVisit(this);
    }

    public void setOrderBy(TOrderBy orderBy) {
        this.orderBy = orderBy;
    }
}