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Java > Open Source Codes > org > objectstyle > cayenne > query > Query


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
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6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
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10  * modification, are permitted provided that the following conditions
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22  * must include the following acknowlegement:
23  * "This product includes software developed by independent contributors
24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
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28  * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
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51  * This software consists of voluntary contributions made by many
52  * individuals and hosted on ObjectStyle Group web site. For more
53  * information on the ObjectStyle Group, please see
54  * <http://objectstyle.org/>.
55  */

56 package org.objectstyle.cayenne.query;
57
58 import org.apache.log4j.Level;
59
60 /**
61  * An interface of a generic query that can be executed via Cayenne.
62  *
63  * @author Andrei Adamchik
64  */

65 public interface Query extends QueryExecutionPlan {
66
67     public static final Level DEFAULT_LOG_LEVEL = Level.INFO;
68
69     /**
70      * Returns a symbolic name of the query.
71      *
72      * @since 1.1
73      */

74     String JavaDoc getName();
75
76     /**
77      * Sets a symbolic name of the query.
78      *
79      * @since 1.1
80      */

81     void setName(String JavaDoc name);
82
83     /**
84      * Returns the <code>logLevel</code> property of this query. Log level is a hint to
85      * QueryEngine that performs this query to log execution with a certain priority.
86      */

87     Level getLoggingLevel();
88
89     void setLoggingLevel(Level level);
90
91     /**
92      * Returns the root object of the query.
93      */

94     // TODO: deprecate this... with new routing mechanism, not all queries need a root.
95
Object JavaDoc getRoot();
96
97     /**
98      * Sets the root of the query.
99      */

100     // TODO: deprecate this... with new routing mechanism, not all queries need a root.
101
void setRoot(Object JavaDoc root);
102 }
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