public Object read(Object key) throws CacheException {
try {
return cache.get(new Fqn(regionFqn, key), ITEM);
} catch (Exception e) {
throw new CacheException(e);
}
}
public void update(Object key, Object value) throws CacheException {
try {
cache.put(new Fqn(regionFqn, key), ITEM, value);
} catch (Exception e) {
throw new CacheException(e);
}
}
public void clear() throws CacheException {
try {
cache.remove(regionFqn);
} catch (Exception e) {
throw new CacheException(e);
}
}
public void remove(Object key) throws CacheException {
try {
cache.remove(new Fqn(regionFqn, key));
} catch (Exception e) {
throw new CacheException(e);
}
}
@SuppressWarnings("unchecked")
public Map toMap() {
try {
Map result = new HashMap();
Set childrenNames = cache.getChildrenNames(regionFqn);
if (childrenNames != null) {
Iterator iter = childrenNames.iterator();
while (iter.hasNext()) {
Object key = iter.next();
result.put(key, cache.get(new Fqn(regionFqn, key), ITEM));
}
}
return result;
} catch (Exception e) {
throw new CacheException(e);
}
}
public long getElementCountInMemory() {
try {
Set children = cache.getChildrenNames(regionFqn);
return children == null ? 0 : children.size();
} catch (Exception e) {
throw new CacheException(e);
}
}
@SuppressWarnings("deprecation")
public void put(Object key, Object value) throws CacheException {
Transaction tx = suspend();
try {
// Workaround for JBCACHE-785
cache.getInvocationContext().setTransaction(null);
cache.getInvocationContext().setGlobalTransaction(null);
// do the failfast put outside the scope of the JTA txn
cache.putFailFast(new Fqn(regionFqn, key), ITEM, value, 0);
} catch (TimeoutException te) {
// ignore!
log.debug("ignoring write lock acquisition failure");
} catch (Exception e) {
throw new CacheException(e);
} finally {
resume(tx);
}
}
public void destroy() throws CacheException {
try {
// NOTE : evict() operates locally only (i.e., does not propogate
// to any other nodes in the potential cluster). This is
// exactly what is needed when we destroy() here; destroy() is used
// as part of the process of shutting down a SessionFactory; thus
// these removals should not be propogated
cache.evict(regionFqn);
} catch (Exception e) {
throw new CacheException(e);
}
}
