/**
* Stops execution of all the continuous queries for this client to become inactive. This is
* useful when client needs to control the incoming cq messages during bulk region operations.
*
* @see QueryService#executeCqs()
* @throws CqException if failure to execute CQ.
*/
public void stopCqs() throws CqException {
try {
getCqService().stopAllClientCqs();
} catch (CqException cqe) {
if (logger.isDebugEnabled()) {
logger.debug("Unable to stop all CQs. Error :{}", cqe.getMessage(), cqe);
}
}
}
/**
* Starts execution of all the registered continuous queries for this client. This is
* complementary to stopCqs.
*
* @see QueryService#stopCqs()
* @throws CqException if failure to execute CQ.
*/
public void executeCqs() throws CqException {
try {
getCqService().executeAllClientCqs();
} catch (CqException cqe) {
if (logger.isDebugEnabled()) {
logger.debug("Unable to execute all cqs. Error :{}", cqe.getMessage(), cqe);
}
}
}
/**
* Close all CQs executing in this VM, and release resources associated with executing CQs.
* CqQuerys created by other VMs are unaffected.
*/
public void closeCqs() {
try {
getCqService().closeAllCqs(true);
} catch (CqException cqe) {
if (logger.isDebugEnabled()) {
logger.debug("Unable to closeAll Cqs. Error :{}", cqe.getMessage(), cqe);
}
}
}
/**
* Stops execution of all the continuous queries registered on the specified region for this
* client. This is useful when client needs to control the incoming cq messages during bulk region
* operations.
*
* @see QueryService#executeCqs()
* @throws CqException if failure to execute CQs.
*/
public void stopCqs(String regionName) throws CqException {
try {
getCqService().stopAllRegionCqs(regionName);
} catch (CqException cqe) {
if (logger.isDebugEnabled()) {
logger.debug(
"Unable to stop cqs on the specified region. Error :{}", cqe.getMessage(), cqe);
}
}
}
/**
* Get statistics information for this query.
*
* @return CQ statistics null if the continuous query object not found for the given cqName.
*/
public CqServiceStatistics getCqStatistics() {
CqServiceStatistics stats = null;
try {
stats = getCqService().getCqStatistics();
} catch (CqException cqe) {
if (logger.isDebugEnabled()) {
logger.debug("Unable get CQ Statistics. Error :{}", cqe.getMessage(), cqe);
}
}
return stats;
}
/**
* Retrieve all CqQuerys created by this VM.
*
* @return null if there are no cqs.
*/
public CqQuery[] getCqs() {
CqQuery[] cqs = null;
try {
return toArray(getCqService().getAllCqs());
} catch (CqException cqe) {
if (logger.isDebugEnabled()) {
logger.debug("Unable to getAllCqs. Error :{}", cqe.getMessage(), cqe);
}
}
return cqs;
}
/**
* Retrieve a CqQuery by name.
*
* @return the CqQuery or null if not found
*/
public CqQuery getCq(String cqName) {
CqQuery cq = null;
try {
cq = (CqQuery) getCqService().getCq(cqName);
} catch (CqException cqe) {
if (logger.isDebugEnabled()) {
logger.debug("Unable to getCq. Error :{}", cqe.getMessage(), cqe);
}
}
return cq;
}
