Java Code Examples for com.hazelcast.config.MapConfig#setEvictionPolicy()

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();

    /*
     * Number of backups. If 1 is set as the backup-count for example, then all entries of the
     * map will be copied to another JVM for fail-safety. Valid numbers are 0 (no backup), 1, 2,
     * 3.
     */
    mapConfig.setBackupCount(1);

    /*
     * Valid values are: NONE (no eviction), LRU (Least Recently Used), LFU (Least Frequently
     * Used). NONE is the default.
     */
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

    /*
     * Maximum size of the map. When max size is reached, map is evicted based on the policy
     * defined. Any integer between 0 and Integer.MAX_VALUE. 0 means Integer.MAX_VALUE. Default
     * is 0.
     */
    mapConfig
            .setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));

    return mapConfig;
}
 

@Inject
public ClusterManager(HazelcastConnection connection, List<HealthCheck> healthChecks, ServerFactory serverFactory) throws IOException {
    this.hazelcastConnection = connection;
    this.healthChecks = healthChecks;
    MapConfig mapConfig = new MapConfig(MAP_NAME);
    mapConfig.setTimeToLiveSeconds(MAP_REFRESH_TIME + 2); //Reduce jitter
    mapConfig.setBackupCount(1);
    mapConfig.setAsyncBackupCount(2);
    mapConfig.setEvictionPolicy(EvictionPolicy.NONE);
    hazelcastConnection.getHazelcastConfig()
            .getMapConfigs()
            .put(MAP_NAME, mapConfig);
    String hostname = Inet4Address.getLocalHost()
            .getCanonicalHostName();
    //Auto detect marathon environment and query for host environment variable
    if(!Strings.isNullOrEmpty(System.getenv("HOST")))
        hostname = System.getenv("HOST");
    Preconditions.checkNotNull(hostname, "Could not retrieve hostname, cannot proceed");
    int port = ServerUtils.port(serverFactory);
    //Auto detect marathon environment and query for host environment variable
    if(!Strings.isNullOrEmpty(System.getenv("PORT_" + port)))
        port = Integer.parseInt(System.getenv("PORT_" + port));
    executor = Executors.newScheduledThreadPool(1);
    clusterMember = new ClusterMember(hostname, port);
}
 

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();

/*
    Number of backups. If 1 is set as the backup-count for example,
    then all entries of the map will be copied to another JVM for
    fail-safety. Valid numbers are 0 (no backup), 1, 2, 3.
 */
    mapConfig.setBackupCount(0);

/*
    Valid values are:
    NONE (no eviction),
    LRU (Least Recently Used),
    LFU (Least Frequently Used).
    NONE is the default.
 */
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

/*
    Maximum size of the map. When max size is reached,
    map is evicted based on the policy defined.
    Any integer between 0 and Integer.MAX_VALUE. 0 means
    Integer.MAX_VALUE. Default is 0.
 */
    mapConfig.setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));

    return mapConfig;
}
 

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();
    mapConfig.setBackupCount(1);
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);
    mapConfig.setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));
    return mapConfig;
}
 

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();

/*
    Number of backups. If 1 is set as the backup-count for example,
    then all entries of the map will be copied to another JVM for
    fail-safety. Valid numbers are 0 (no backup), 1, 2, 3.
 */
    mapConfig.setBackupCount(0);

/*
    Valid values are:
    NONE (no eviction),
    LRU (Least Recently Used),
    LFU (Least Frequently Used).
    NONE is the default.
 */
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

/*
    Maximum size of the map. When max size is reached,
    map is evicted based on the policy defined.
    Any integer between 0 and Integer.MAX_VALUE. 0 means
    Integer.MAX_VALUE. Default is 0.
 */
    mapConfig.setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));

    return mapConfig;
}
 

@Bean
public Config hazelCastConfig() {
 
    Config config = new Config();
    config.setInstanceName("hazelcast-packt-cache");
    config.setProperty("hazelcast.jmx", "true");
 
    MapConfig deptCache = new MapConfig();
    deptCache.setTimeToLiveSeconds(20);
    deptCache.setEvictionPolicy(EvictionPolicy.LFU);
   
    config.getMapConfigs().put("hazeldept",deptCache);
    return config;
}
 

private MapConfig createDeviceCredentialsCacheConfig() {
    MapConfig deviceCredentialsCacheConfig = new MapConfig(CacheConstants.DEVICE_CREDENTIALS_CACHE);
    deviceCredentialsCacheConfig.setTimeToLiveSeconds(cacheDeviceCredentialsTTL);
    deviceCredentialsCacheConfig.setEvictionPolicy(EvictionPolicy.LRU);
    deviceCredentialsCacheConfig.setMaxSizeConfig(
            new MaxSizeConfig(
                    cacheDeviceCredentialsMaxSizeSize,
                    MaxSizeConfig.MaxSizePolicy.valueOf(cacheDeviceCredentialsMaxSizePolicy))
    );
    return deviceCredentialsCacheConfig;
}
 

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();

    /*
        Number of backups. If 1 is set as the backup-count for example,
        then all entries of the map will be copied to another JVM for
        fail-safety. Valid numbers are 0 (no backup), 1, 2, 3.
     */
    mapConfig.setBackupCount(0);

    /*
        Valid values are:
        NONE (no eviction),
        LRU (Least Recently Used),
        LFU (Least Frequently Used).
        NONE is the default.
     */
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

    /*
        Maximum size of the map. When max size is reached,
        map is evicted based on the policy defined.
        Any integer between 0 and Integer.MAX_VALUE. 0 means
        Integer.MAX_VALUE. Default is 0.
     */
    mapConfig.setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));

    /*
        When max. size is reached, specified percentage of
        the map will be evicted. Any integer between 0 and 100.
        If 25 is set for example, 25% of the entries will
        get evicted.
     */
    mapConfig.setEvictionPercentage(25);

    return mapConfig;
}
 

private MapConfig getDefaultMapConfig(CacheConfig cacheConfig) {
    MapConfig mapConfig = new MapConfig(CACHE_NAME_PREFIX + "*");
    mapConfig.setInMemoryFormat(InMemoryFormat.BINARY);
    mapConfig.setBackupCount(0);
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

    if(cacheConfig.getMaxIdleSeconds() == 0) {
        mapConfig.setMaxIdleSeconds(DEFAULT_MAX_IDLE_SECONDS);
    } else {
        mapConfig.setMaxIdleSeconds(cacheConfig.getMaxIdleSeconds());
    }

    if(cacheConfig.getTimeToLiveSeconds() == 0) {
        mapConfig.setTimeToLiveSeconds(DEFAULT_TIME_TO_LIVE_SECONDS);
    } else {
        mapConfig.setTimeToLiveSeconds(cacheConfig.getTimeToLiveSeconds());
    }

    MaxSizeConfig maxSizeConfig = new MaxSizeConfig();
    maxSizeConfig.setMaxSizePolicy(MaxSizeConfig.MaxSizePolicy.USED_HEAP_PERCENTAGE);
    if(cacheConfig.getSize() == 0) {
        maxSizeConfig.setSize(DEFAULT_SIZE);
    } else {
        maxSizeConfig.setSize(cacheConfig.getSize());
    }
    mapConfig.setMaxSizeConfig(maxSizeConfig);
    return mapConfig;
}
 

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();

/*
    Number of backups. If 1 is set as the backup-count for example,
    then all entries of the map will be copied to another JVM for
    fail-safety. Valid numbers are 0 (no backup), 1, 2, 3.
 */
    mapConfig.setBackupCount(0);

/*
    Valid values are:
    NONE (no eviction),
    LRU (Least Recently Used),
    LFU (Least Frequently Used).
    NONE is the default.
 */
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

/*
    Maximum size of the map. When max size is reached,
    map is evicted based on the policy defined.
    Any integer between 0 and Integer.MAX_VALUE. 0 means
    Integer.MAX_VALUE. Default is 0.
 */
    mapConfig.setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));

    return mapConfig;
}
 

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();

/*
    Number of backups. If 1 is set as the backup-count for example,
    then all entries of the map will be copied to another JVM for
    fail-safety. Valid numbers are 0 (no backup), 1, 2, 3.
 */
    mapConfig.setBackupCount(0);

/*
    Valid values are:
    NONE (no eviction),
    LRU (Least Recently Used),
    LFU (Least Frequently Used).
    NONE is the default.
 */
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

/*
    Maximum size of the map. When max size is reached,
    map is evicted based on the policy defined.
    Any integer between 0 and Integer.MAX_VALUE. 0 means
    Integer.MAX_VALUE. Default is 0.
 */
    mapConfig.setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));

    return mapConfig;
}
 

private MapConfig initializeDefaultMapConfig() {
    MapConfig mapConfig = new MapConfig();

/*
    Number of backups. If 1 is set as the backup-count for example,
    then all entries of the map will be copied to another JVM for
    fail-safety. Valid numbers are 0 (no backup), 1, 2, 3.
 */
    mapConfig.setBackupCount(0);

/*
    Valid values are:
    NONE (no eviction),
    LRU (Least Recently Used),
    LFU (Least Frequently Used).
    NONE is the default.
 */
    mapConfig.setEvictionPolicy(EvictionPolicy.LRU);

/*
    Maximum size of the map. When max size is reached,
    map is evicted based on the policy defined.
    Any integer between 0 and Integer.MAX_VALUE. 0 means
    Integer.MAX_VALUE. Default is 0.
 */
    mapConfig.setMaxSizeConfig(new MaxSizeConfig(0, MaxSizeConfig.MaxSizePolicy.USED_HEAP_SIZE));

    return mapConfig;
}