diff options
Diffstat (limited to 'src/main/java/org/traccar/session/cache/CacheValue.java')
-rw-r--r-- | src/main/java/org/traccar/session/cache/CacheValue.java | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/session/cache/CacheValue.java b/src/main/java/org/traccar/session/cache/CacheValue.java new file mode 100644 index 000000000..1f0383ce5 --- /dev/null +++ b/src/main/java/org/traccar/session/cache/CacheValue.java @@ -0,0 +1,53 @@ +/* + * Copyright 2022 Anton Tananaev (anton@traccar.org) + * + * Licensed 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.traccar.session.cache; + +import org.traccar.model.BaseModel; + +import java.util.HashSet; +import java.util.Set; + +class CacheValue { + + private BaseModel value; + private final Set<Long> references = new HashSet<>(); + + CacheValue(BaseModel value) { + this.value = value; + } + + public void retain(long deviceId) { + references.add(deviceId); + } + + public void release(long deviceId) { + references.remove(deviceId); + } + + @SuppressWarnings("unchecked") + public <T extends BaseModel> T getValue() { + return (T) value; + } + + public void setValue(BaseModel value) { + this.value = value; + } + + public Set<Long> getReferences() { + return references; + } + +} |