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Merged 1.4 to HEAD

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svn merge svn://svn.alfresco.com:3691/alfresco/BRANCHES/V1.4@4380 svn://svn.alfresco.com:3691/alfresco/BRANCHES/V1.4@4386 .


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4659 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
2006-12-19 15:04:47 +00:00
parent 31d1fa1fb1
commit 4443f42279
14 changed files with 601 additions and 46 deletions
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35
source/java/org/alfresco/repo/cache/TransactionalCache.java vendored
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@@ -17,6 +17,8 @@
package org.alfresco.repo.cache;
import java.io.Serializable;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import net.sf.ehcache.Cache;
@@ -226,6 +228,39 @@ public class TransactionalCache<K extends Serializable, V extends Serializable>
return true;
}
}
/**
* The keys returned are a union of the set of keys in the current transaction and
* those in the backing cache.
*/
@SuppressWarnings("unchecked")
public Collection<K> getKeys()
{
Collection<K> keys = null;
// in-txn layering
if (AlfrescoTransactionSupport.getTransactionId() != null)
{
keys = new HashSet<K>(23);
TransactionData txnData = getTransactionData();
if (!txnData.isClearOn)
{
// the backing cache is not due for a clear
Collection<K> backingKeys = (Collection<K>) sharedCache.getKeys();
keys.addAll(backingKeys);
}
// add keys
keys.addAll((Collection<K>) txnData.updatedItemsCache.getKeys());
// remove keys
keys.removeAll((Collection<K>) txnData.removedItemsCache.getKeys());
}
else
{
// no transaction, so just use the backing cache
keys = (Collection<K>) sharedCache.getKeys();
}
// done
return keys;
}
/**
* Checks the per-transaction caches for the object before going to the shared cache.