/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012 gnosygnu@gmail.com

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.dbs; import gplx.*;
import gplx.core.criterias.*;
public class Db_crt_ {
	public static final Criteria Wildcard = Criteria_.All;
	public static Criteria_fld New_eq			(String key, Object val)						{return Criteria_fld.new_(key, Criteria_.eq_(val));}
	public static Criteria_fld New_eq			(String pre, String key, Object val)			{return Criteria_fld.new_(pre, key, Criteria_.eq_(val));}
	public static Criteria_fld New_eq_not		(String key, Object val)						{return Criteria_fld.new_(key, Criteria_.eqn_(val));}
	public static Criteria_fld New_lt			(String key, Comparable val)					{return Criteria_fld.new_(key, Criteria_.lt_(val));}
	public static Criteria_fld New_lte			(String key, Comparable val)					{return Criteria_fld.new_(key, Criteria_.lte_(val));}
	public static Criteria_fld New_mt			(String key, Comparable val)					{return Criteria_fld.new_(key, Criteria_.mt_(val));}
	public static Criteria_fld New_mte			(String key, Comparable val)					{return Criteria_fld.new_(key, Criteria_.mte_(val));}
	public static Criteria_fld New_between		(String key, Comparable lo, Comparable hi)	{return Criteria_fld.new_(key, Criteria_.between_(lo, hi));}
	public static Criteria_fld New_in			(String key, Object... vals)				{return Criteria_fld.new_(key, Criteria_.in_(vals));}
	public static Criteria_fld New_like			(String key, String pattern)					{return Criteria_fld.new_(key, Criteria_.like_(pattern));}

	public static Criteria eq_many_(String... ary) {
		Criteria rv = null;
		int len = ary.length;
		for (int i = 0; i < len; i++) {
			Criteria crt = Db_crt_.New_eq(ary[i], null);
			rv = (i == 0)? crt : Criteria_.And(rv, crt);
		}
		return rv;
	}
	public static Criteria eq_many_wo_null(String... ary) {
		Criteria rv = null;
		int len = ary.length;
		int crt_idx = 0;
		for (int i = 0; i < len; i++) {
			String itm = ary[i]; if (itm == Dbmeta_fld_itm.Key_null) continue;
			Criteria crt = Db_crt_.New_eq(itm, null);
			rv = (crt_idx == 0) ? crt : Criteria_.And(rv, crt);
			++crt_idx;
		}
		return rv;
	}
	public static Criteria eq_many_(KeyVal... array) {
		Criteria rv = null;
		for (int i = 0; i < array.length; i++) {
			KeyVal pair = array[i];
			Criteria crt = Db_crt_.New_eq(pair.Key(), pair.Val());
			rv = (i == 0)? crt : Criteria_.And(rv, crt);
		}
		return rv;
	}
	public static Criteria_fld wrap_(String key, Criteria crt) {return Criteria_fld.new_(key, crt);}
}