01: /*
02:
03: Derby - Class org.apache.derby.impl.services.daemon.ServiceRecord
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.impl.services.daemon;
23:
24: import org.apache.derby.iapi.services.daemon.Serviceable;
25:
26: /** wrapper class for basic daemon's clients */
27: class ServiceRecord {
28: // immutable fields
29: final Serviceable client;
30: private final boolean onDemandOnly;
31: final boolean subscriber;
32:
33: // we can tolerate spurrious service, so don't synchronized this
34: private boolean serviceRequest;
35:
36: ServiceRecord(Serviceable client, boolean onDemandOnly,
37: boolean subscriber) {
38: this .client = client;
39: this .onDemandOnly = onDemandOnly;
40: this .subscriber = subscriber;
41: }
42:
43: final void serviced() {
44: serviceRequest = false;
45: }
46:
47: final boolean needImmediateService() {
48: return serviceRequest;
49: }
50:
51: final boolean needService() {
52: return serviceRequest || !onDemandOnly;
53: }
54:
55: final void called() {
56: serviceRequest = true;
57: }
58: }
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