org.springframework.xd.analytics.metrics.memory

Class InMemoryFieldValueCounterService

java.lang.Object

org.springframework.xd.analytics.metrics.memory.InMemoryFieldValueCounterService

All Implemented Interfaces:

FieldValueCounterService

public class InMemoryFieldValueCounterService
extends java.lang.Object
implements FieldValueCounterService

An in memory based implementation of the FieldValueCounterService

Author:

Mark Pollack

Constructor Summary

Constructors

Constructor and Description
InMemoryFieldValueCounterService(InMemoryFieldValueCounterRepository fieldValueRepository)

Method Summary

Methods

Modifier and Type	Method and Description
void	decrement(java.lang.String name, java.lang.String fieldName) Decrement the FieldValueCounter for a given field name by one
FieldValueCounter	getOrCreate(java.lang.String name) Returns an existing FieldValueCounter for the given name or creates a new FieldValueCounter with the counts of all fields set to zero
void	increment(java.lang.String name, java.lang.String fieldName) Increment the FieldValueCounter for a given field name by one
void	reset(java.lang.String name, java.lang.String fieldName) Reset the FieldValueCounter to zero for the given field name

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemoryFieldValueCounterService

public InMemoryFieldValueCounterService(InMemoryFieldValueCounterRepository fieldValueRepository)

Method Detail

getOrCreate

public FieldValueCounter getOrCreate(java.lang.String name)

Description copied from interface: FieldValueCounterService

Returns an existing FieldValueCounter for the given name or creates a new FieldValueCounter with the counts of all fields set to zero

Specified by:

getOrCreate in interface FieldValueCounterService

Parameters:

name - name of the FieldValueCounter

Returns:

existing or new FieldValueCounter.

increment

public void increment(java.lang.String name,
             java.lang.String fieldName)

Description copied from interface: FieldValueCounterService

Increment the FieldValueCounter for a given field name by one

Specified by:

increment in interface FieldValueCounterService

Parameters:

name - the FieldValueCounter name

fieldName - the name of the field

decrement

public void decrement(java.lang.String name,
             java.lang.String fieldName)

Description copied from interface: FieldValueCounterService

Decrement the FieldValueCounter for a given field name by one

Specified by:

decrement in interface FieldValueCounterService

Parameters:

name - the FieldValueCounter name

fieldName - the name of the field

reset

public void reset(java.lang.String name,
         java.lang.String fieldName)

Description copied from interface: FieldValueCounterService

Reset the FieldValueCounter to zero for the given field name

Specified by:

reset in interface FieldValueCounterService

Parameters:

name - the FieldValueCounter name

fieldName - the name of the field