SqlTokenizer


1   /*
2    * Copyright 2006-2007 The Scriptella Project Team.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package scriptella.jdbc;
17  
18  import java.io.Closeable  ;
19  import java.io.IOException  ;
20  
21  /**
22   * This interface provides a contract to iterate SQL statements.
23   *
24   * @author Fyodor Kupolov
25   * @version 1.0
26   */
27  public interface SqlTokenizer extends Closeable   {
28      int[] EMPTY_INJECTIONS_ARRAY = new int[0];
29      /**
30       * Parses the following SQL statement from the source.
31       * <p>Use {@link #getInjections()} to obtain recognized injections, e.g.
32       * binding variables and/or expressions.
33       *
34       * @return parsed SQL statement or null if EOF.
35       * @throws IOException if I/O exception occurs
36       */
37      String   nextStatement() throws IOException  ;
38  
39      /**
40       * This method returns list of injections for the last returned statement.
41       * @return injections for the last returned statement.
42       */
43      int[] getInjections();
44  }
45

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