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Java > Open Source Codes > org > apache > tapestry > binding > BindingFactory


1 // Copyright 2004, 2005 The Apache Software Foundation
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 package org.apache.tapestry.binding;
16
17 import org.apache.hivemind.Location;
18 import org.apache.tapestry.IBinding;
19 import org.apache.tapestry.IComponent;
20
21 /**
22  * Creates a new instance of {@link org.apache.tapestry.IBinding}.
23  *
24  * @author Howard Lewis Ship
25  * @since 4.0
26  */
27 public interface BindingFactory
28 {
29     /**
30      * Creates a new binding instance.
31      *
32      * @param root
33      * the component that is the source of properties or messages (or etc.). When the
34      * path is "evaluated", the root component provides a context.
35      * @param description
36      * The {@link IBinding#getDescription() description}of the binding.
37      * @param path
38      * The path used to get (or update) a value for the path. This may be an OGNL
39      * expression, a message key, a literal value, or otherwise defined by the type of
40      * binding. It is the value of the binding reference with the prefix (used to
41      * identify the factory) stripped off.
42      * @param location
43      * The location of the binding, used to report any errors related to the binding, or
44      * to the component parameter the binding is bound to.
45      */
46     public IBinding createBinding(IComponent root, String JavaDoc bindingDescription, String JavaDoc path,
47             Location location);
48 }
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