CacheStatistics (OpenJPA Parent POM 3.2.2 API)

All Superinterfaces:

Serializable

All Known Subinterfaces:

CacheStatisticsSPI

All Known Implementing Classes:

CacheStatisticsImpl
```
public interface CacheStatistics
extends Serializable
```
Counts number of read/write requests and hit ratio for a cache in total and per-class basis. All methods with Class as input argument treats null as java.lang.Object. All per-class statistics depends on determining the runtime type of the instance being cached. If it is not possible to determine the runtime type from the given context, the statistics is registered under generic java.lang.Object.

Since:

1.3.0

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method and Description
`Set<String>`	`classNames()` Returns the types that are known to this cache being tracked.
`long`	`getHitCount()` Gets number of total read requests that has been found in cache since last reset.
`long`	`getHitCount(Class<?> cls)` Deprecated. - should use getHitCount(String c)
`long`	`getHitCount(String c)` Gets number of total read requests that has been found in cache for the given class since last reset.
`long`	`getReadCount()` Gets number of total read requests since last reset.
`long`	`getReadCount(Class<?> cls)` Deprecated. - should use getReadCount(String c)
`long`	`getReadCount(String c)` Gets number of total read requests for the given class since last reset.
`long`	`getTotalHitCount()` Gets number of total read requests that has been found in cache since start.
`long`	`getTotalHitCount(Class<?> cls)` Deprecated. - should use getTotalHitCount(String c)
`long`	`getTotalHitCount(String c)` Gets number of total read requests that has been found in cache for the given class since start.
`long`	`getTotalReadCount()` Gets number of total read requests since start.
`long`	`getTotalReadCount(Class<?> cls)` Deprecated. - should use getTotalReadCount(String c)
`long`	`getTotalReadCount(String c)` Gets number of total read requests for the given class since start.
`long`	`getTotalWriteCount()` Gets number of total write requests since start.
`long`	`getTotalWriteCount(Class<?> cls)` Deprecated. - should use getTotalWriteCount(String c)
`long`	`getTotalWriteCount(String c)` Gets number of total write requests for the given class since start.
`long`	`getWriteCount()` Gets number of total write requests since last reset.
`long`	`getWriteCount(Class<?> cls)` Deprecated. - should use getWriteCount(String c)
`long`	`getWriteCount(String c)` Gets number of total write requests for the given class since last reset.
`boolean`	`isEnabled()` Returns whether or not statistics will be collected.
`void`	`reset()` Clears all accumulated statistics.
`Date`	`since()` Gets the time of last reset.
`Date`	`start()` Gets the time of start.
`Map<String,long[]>`	`toMap()`

- Method Detail
  - getReadCount
```
long getReadCount()
```
    Gets number of total read requests since last reset.
  - getHitCount
```
long getHitCount()
```
    Gets number of total read requests that has been found in cache since last reset.
  - getWriteCount
```
long getWriteCount()
```
    Gets number of total write requests since last reset.
  - getTotalReadCount
```
long getTotalReadCount()
```
    Gets number of total read requests since start.
  - getTotalHitCount
```
long getTotalHitCount()
```
    Gets number of total read requests that has been found in cache since start.
  - getTotalWriteCount
```
long getTotalWriteCount()
```
    Gets number of total write requests since start.
  - getReadCount
```
@Deprecated
long getReadCount(Class<?> cls)
```
    Deprecated. - should use getReadCount(String c)
    
    Gets number of total read requests for the given class since last reset.
  - getReadCount
```
long getReadCount(String c)
```
    Gets number of total read requests for the given class since last reset.
  - getHitCount
```
@Deprecated
long getHitCount(Class<?> cls)
```
    Deprecated. - should use getHitCount(String c)
    
    Gets number of total read requests that has been found in cache for the given class since last reset.
  - getHitCount
```
long getHitCount(String c)
```
    Gets number of total read requests that has been found in cache for the given class since last reset.
  - getWriteCount
```
@Deprecated
long getWriteCount(Class<?> cls)
```
    Deprecated. - should use getWriteCount(String c)
    
    Gets number of total write requests for the given class since last reset.
  - getWriteCount
```
long getWriteCount(String c)
```
    Gets number of total write requests for the given class since last reset.
  - getTotalReadCount
```
@Deprecated
long getTotalReadCount(Class<?> cls)
```
    Deprecated. - should use getTotalReadCount(String c)
    
    Gets number of total read requests for the given class since start.
  - getTotalReadCount
```
long getTotalReadCount(String c)
```
    Gets number of total read requests for the given class since start.
  - getTotalHitCount
```
long getTotalHitCount(String c)
```
    Gets number of total read requests that has been found in cache for the given class since start.
  - getTotalHitCount
```
@Deprecated
long getTotalHitCount(Class<?> cls)
```
    Deprecated. - should use getTotalHitCount(String c)
    
    Gets number of total read requests that has been found in cache for the given class since start.
  - getTotalWriteCount
```
long getTotalWriteCount(String c)
```
    Gets number of total write requests for the given class since start.
  - getTotalWriteCount
```
@Deprecated
long getTotalWriteCount(Class<?> cls)
```
    Deprecated. - should use getTotalWriteCount(String c)
    
    Gets number of total write requests for the given class since start.
  - since
```
Date since()
```
    Gets the time of last reset.
  - start
```
Date start()
```
    Gets the time of start.
  - reset
```
void reset()
```
    Clears all accumulated statistics.
  - isEnabled
```
boolean isEnabled()
```
    Returns whether or not statistics will be collected.
  - classNames
```
Set<String> classNames()
```
    Returns the types that are known to this cache being tracked.
  - toMap
```
Map<String,long[]> toMap()
```

Interface CacheStatistics

Method Summary

Method Detail

getReadCount

getHitCount

getWriteCount

getTotalReadCount

getTotalHitCount

getTotalWriteCount

getReadCount

getReadCount

getHitCount

getHitCount

getWriteCount

getWriteCount

getTotalReadCount

getTotalReadCount

getTotalHitCount

getTotalHitCount

getTotalWriteCount

getTotalWriteCount

since

start

reset

isEnabled

classNames

toMap