1 package cz.cuni.amis.pogamut.shady;
2
3 import cz.cuni.amis.pogamut.sposh.executor.IWorkExecutor;
4 import java.math.BigDecimal;
5
6 /**
7 * Interface for getting integer value from some part of the plan, e.g. getting
8 * priority.
9 *
10 * @see QueryCall
11 * @see QueryCmp
12 * @see QueryInt
13 * @see QueryFloat
14 * @see QueryGt
15 * @see QueryGe
16 * @see QueryEq
17 * @see QueryNe
18 * @see QueryLe
19 * @see QueryLt
20 * @see QueryAnd
21 * @see QueryOr
22 * @see QueryNot
23 *
24 * @author Honza
25 */
26 public interface IQuery {
27
28 /**
29 * Execute query and return number.
30 *
31 * @return number as result of query. 0 is failure, otherwise is success
32 */
33 BigDecimal execute(IWorkExecutor executor);
34 }