blob: a8476954801de278c0d86592d169b9baac4609a4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.implementation.das;
import org.apache.tuscany.das.rdb.Command;
import org.apache.tuscany.das.rdb.DAS;
import commonj.sdo.DataObject;
/**
* Facade to hide DAS implementation details of handling commands
*/
public class DataAccessEngine {
private final DAS das;
public DataAccessEngine(DAS das) {
this.das = das;
}
public DataObject executeCommand(String commandName) {
try {
Command command = this.das.getCommand(commandName);
return command.executeQuery();
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public DataObject executeCommand(String commandName, String xPath) {
DataObject root = executeCommand(commandName);
return root.getDataObject(xPath);
}
}
|
