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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.orchestra.dynaForm.metadata;
20  
21  import java.util.Iterator;
22  
23  /**
24   * A read-only view of metadata about a particular entity.
25   */
26  public interface MetaData
27  {
28      /**
29       * number of fields
30       */
31      public int getFieldCount();
32  
33      /**
34       * iterate through fields
35       */
36      public Iterator<String> iterFieldNames();
37  
38      /**
39       * get the field by name
40       */
41      public MetaField getField(String name);
42  
43      /**
44       * get all fields names
45       */
46      public String[] getFieldNames();
47  }