Author: schor
Date: Wed Oct 17 19:12:01 2018
New Revision: 1844153
URL: http://svn.apache.org/viewvc?rev=1844153&view=rev
Log:
[UIMA-5842] comment update
Modified:
uima/uv3/uimaj-v3/trunk/uimaj-core/src/main/java/org/apache/uima/cas/impl/CASImpl.java
Modified:
uima/uv3/uimaj-v3/trunk/uimaj-core/src/main/java/org/apache/uima/cas/impl/CASImpl.java
URL:
http://svn.apache.org/viewvc/uima/uv3/uimaj-v3/trunk/uimaj-core/src/main/java/org/apache/uima/cas/impl/CASImpl.java?rev=1844153&r1=1844152&r2=1844153&view=diff
==============================================================================
---
uima/uv3/uimaj-v3/trunk/uimaj-core/src/main/java/org/apache/uima/cas/impl/CASImpl.java
(original)
+++
uima/uv3/uimaj-v3/trunk/uimaj-core/src/main/java/org/apache/uima/cas/impl/CASImpl.java
Wed Oct 17 19:12:01 2018
@@ -560,9 +560,14 @@ public class CASImpl extends AbstractCas
*/
private boolean isId2Fs;
- /***********************************
- * C A S S T A T E management *
- ***********************************/
+
/******************************************************************************************
+ * C A S S T A T E management
*
+ * Cas state is implemented in a way to allow the Java to efficiently
*
+ * access the state test without synchronization or "voliatile" memory
accessing, *
+ * while at the same time, allowing for an occasional cross-thread
memory invalidation *
+ * when the state is changed. This is done using a MutableCallSite
plus that *
+ * objects "syncAll" method.
*
+
******************************************************************************************/
private final EnumSet<CasState> casState = EnumSet.noneOf(CasState.class);
private static final MethodType noArgBoolean =
MethodType.methodType(boolean.class);
