ReportSemaphoreHandling (Openbravo ERP 3.0PR23Q2.3)

java.lang.Object
- org.openbravo.client.application.report.ReportSemaphoreHandling

All Implemented Interfaces:

OBProvidable, OBSingleton
```
public class ReportSemaphoreHandling
extends Object
implements OBSingleton
```
A class which can be used to limit the number of parallel processes running. If no semaphore is available an OBException is thrown. This semaphore handler can/should be used by heavy resource intensive reporting processes.To prevent too many to run at the same time. Implementation is based on Semaphore. The acquire() and release() methods should be called using a try finally block:
```
 
 // call acquire before the try:
 ReportSemaphoreHandling.getInstance().acquire();
 try {
 
 } finally {
   ReportSemaphoreHandling.getInstance().release();
 }
 
 
```
Author:

mtaal

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`acquire()`	Increments the threadCounter by one unit.
`static ReportSemaphoreHandling`	`getInstance()`
`void`	`release()`	Decreases the threadCounter by one unit.

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

- Method Detail
  - getInstance
```
public static ReportSemaphoreHandling getInstance()
```
  - acquire
```
public void acquire()
             throws OBException
```
    Increments the threadCounter by one unit. The Max value of the counter can be parameterized by setting the OBUIAPP_MaxReportThreads System preference. If no preference is found or it is wrongly configured DEFAULT_MAX_THREADS default value is used.
    
    Throws:
    
    OBException - When the threadCounter is in its max value.
  - release
```
public void release()
```
    Decreases the threadCounter by one unit.