01: /*
02:
03: Derby - Class org.apache.derby.iapi.store.raw.D_RowLock
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (the "License"); you may not use this file except in compliance with
10: the License. You may obtain a copy of the License at
11:
12: http://www.apache.org/licenses/LICENSE-2.0
13:
14: Unless required by applicable law or agreed to in writing, software
15: distributed under the License is distributed on an "AS IS" BASIS,
16: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: See the License for the specific language governing permissions and
18: limitations under the License.
19:
20: */
21:
22: package org.apache.derby.iapi.store.raw;
23:
24: import org.apache.derby.iapi.services.diag.Diagnosticable;
25: import org.apache.derby.iapi.services.diag.DiagnosticableGeneric;
26: import org.apache.derby.iapi.services.diag.DiagnosticUtil;
27:
28: import org.apache.derby.iapi.error.StandardException;
29:
30: /**
31:
32: The D_RowLock class provides diagnostic information about the
33: RowLock qualifer, and is used for output in lock debugging.
34:
35: **/
36:
37: public class D_RowLock extends DiagnosticableGeneric {
38: // Names of locks for lock trace print out.
39: private static String[] names = { "RS2", "RS3", "RU2", "RU3",
40: "RIP", "RI", "RX2", "RX3" };
41:
42: /**
43: Return the string for the qualifier.
44: *
45: * @exception StandardException Standard Cloudscape error policy
46: **/
47: public String diag() throws StandardException {
48: RowLock mode = (RowLock) diag_object;
49:
50: return (names[mode.getType()]);
51: }
52: }
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