How To Create A Counter In Java

Skip navigation links

Overview

Package

Class

Tree

Deprecated

Index

Help

Oracle Fusion Middleware Java API Reference for Oracle ADF Share
11g Release 1 (11.1.1.9.0)
E52934-01

PREV CLASSNEXT CLASS

FRAMESNO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

oracle.adf.share.perf
Class Counter

java.lang.Object oracle.adf.share.logging.internal.perf.ADFPerfSensor oracle.adf.share.perf.Counter

public class            Counter

extends ADFPerfSensor

This class is a wrapper of DMS Event sensor.

Field Summary
`static Counter`	`DUMMY_COUNTER` A dummy Counter object that does nothing.

Fields inherited from class oracle.adf.share.logging.internal.perf.ADFPerfSensor
`mEnableDms, mEnablePerfLog, mIndex, mLevel, mSensorFullName, sIdxLogger, sLogger`

Constructor Summary
`protected`	`Counter()` creates an empty Counter object.

Method Summary
`static Counter`	`createCounter(java.util.logging.Level level, java.lang.String groupName, java.lang.String name, java.lang.String desc)` Create a Counter object identified by the sensorGroupName and the sensorName.
`static Counter`	`createCounter(java.util.logging.Level level, java.lang.String groupName, java.lang.String name, java.lang.String type, java.lang.String desc)` Create a Counter object identified by the sensorGroupName and the sensorName.
`long`	`getValue()` Get counter current value
`void`	`increase()` Increase the counter to indicate an event occurred.
`void`	`reset()` Clean up the counter value

Methods inherited from class oracle.adf.share.logging.internal.perf.ADFPerfSensor
`isActive, log`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

DUMMY_COUNTER

public static final Counter        DUMMY_COUNTER

A dummy Counter object that does nothing. Allows client code to be written in a generic way without knowing whether the code is executing in the IDE or in a deployed application.

Constructor Detail

Counter

protected        Counter()

creates an empty Counter object.

Method Detail

increase

public void        increase()

Increase the counter to indicate an event occurred.

getValue

public long        getValue()

Get counter current value

Returns:: counter value. When the sensor is not enabled or the value is not integer, it return -1 to indicate a problem.

reset

public void        reset()

Clean up the counter value

Overrides:: reset in class ADFPerfSensor

createCounter

public static Counter        createCounter(java.util.logging.Level level,                                     java.lang.String groupName,                                     java.lang.String name,                                     java.lang.String desc)

Create a Counter object identified by the sensorGroupName and the sensorName.

Developers should then call Counter's increase(), reset() methods to track the counter object.

Internally, this method creates a DMS Event sensor.

When running inside the IDE, this methods returns DUMMY_COUNTER.

Parameters:: level - one of the message level identifiers, e.g. SEVERE; groupName - the group name, which has the format of /oracle/component_id/module/subModule/... The component_id is also used as Counter type; name - the counter name.; desc - the description for this Counter.
Returns:: the new Counter