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-rw-r--r--sca-java-2.x/trunk/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java12
1 files changed, 12 insertions, 0 deletions
diff --git a/sca-java-2.x/trunk/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java b/sca-java-2.x/trunk/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java
index 579e0c3da9..d10a5689d4 100644
--- a/sca-java-2.x/trunk/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java
+++ b/sca-java-2.x/trunk/modules/core-spi/src/main/java/org/apache/tuscany/sca/invocation/InvocationChain.java
@@ -105,4 +105,16 @@ public interface InvocationChain {
* @param allowsPBR
*/
void setAllowsPassByReference(boolean allowsPBR);
+
+ /**
+ * Returns true if this chain must be able to support async
+ * invocation. This will be as a consequence of the EPR/EP
+ * detecting the asyncInvocation intent. The flag is set on
+ * construction and used as an internal guard against non
+ * async interceptors being added to a chain that expect to
+ * be able to handle async calls
+ *
+ * @return true is the chain supports async invocation.
+ */
+ boolean isAsyncInvocation();
}