Package com.wavefront.agent.histogram

Class MapLoader<K,V,KM extends net.openhft.chronicle.hash.serialization.BytesReader<K> & net.openhft.chronicle.hash.serialization.BytesWriter<K>,VM extends net.openhft.chronicle.hash.serialization.SizedReader<V> & net.openhft.chronicle.hash.serialization.SizedWriter<V>>

java.lang.Object

com.wavefront.agent.histogram.MapLoader<K,V,KM,VM>

public class MapLoader<K,V,KM extends net.openhft.chronicle.hash.serialization.BytesReader<K> & net.openhft.chronicle.hash.serialization.BytesWriter<K>,VM extends net.openhft.chronicle.hash.serialization.SizedReader<V> & net.openhft.chronicle.hash.serialization.SizedWriter<V>>
extends Object

Loader for ChronicleMap. If a file already exists at the given location, will make an attempt to load the map from the existing file. Will fall-back to an in memory representation if the file cannot be loaded (see logs).

Author:

Tim Schmidt ([email protected]).

Constructor Summary

Constructors

Constructor	Description
MapLoader(Class<K> keyClass, Class<V> valueClass, long entries, double avgKeySize, double avgValueSize, KM keyMarshaller, VM valueMarshaller, boolean doPersist)	Creates a new MapLoader

Method Summary

Modifier and Type	Method	Description
net.openhft.chronicle.map.ChronicleMap<K,V>	get(File f)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MapLoader

public MapLoader(Class<K> keyClass,
                 Class<V> valueClass,
                 long entries,
                 double avgKeySize,
                 double avgValueSize,
                 KM keyMarshaller,
                 VM valueMarshaller,
                 boolean doPersist)

Creates a new MapLoader

Parameters:

keyClass - the Key class

valueClass - the Value class

entries - the maximum number of entries

avgKeySize - the average marshaled key size in bytes

avgValueSize - the average marshaled value size in bytes

keyMarshaller - the key codec

valueMarshaller - the value codec

doPersist - whether to persist the map

Method Detail

get

public net.openhft.chronicle.map.ChronicleMap<K,V> get(File f)
                                                      throws Exception

Throws:

Exception

toString

public String toString()

Overrides:

toString in class Object