This chapter provides more detailed information on how to package and configure applications that use both Coherence and Coherence*Web. You can find more information on Coherence*Web and how to enable it for applications running on a variety of application servers in User's Guide for Oracle Coherence*Web.
2.1 Merging Coherence Cache and Session Information
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In Coherence, the cache configuration deployment descriptor provides detailed information about the various caches that can be used by applications within a cluster. Coherence provides a sample cache configuration deployment descriptor, named
coherence-cache-config.xml
, in the root of the coherence.jar
library.In Coherence*Web, the session cache configuration deployment descriptor provides detailed information about the caches, services, and attributes used by HTTP session management. Coherence*Web provides a sample session cache configuration deployment descriptor, named
session-cache-config.xml
, in the WEB-INF/classes
directory of the coherence-web-spi.war
library.At run time, Coherence uses the first
coherence-cache-config.xml
(or session-cache-config.xml
) file that is found in the classpath, and it must precede the coherence.jar
library; otherwise, the sample coherence-cache-config.xml
file in the coherence.jar
file is used.If your Coherence applications are using Coherence*Web for HTTP session management, the start-up script for the application server and the Coherence cache servers must reference the session cache configuration file--not the cache configuration file. In this case, you must perform these steps: Downie 3 0 b15 download free.
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- Extract the session cache configuration file from the
coherence-web-spi.war
library. - Merge the cache information from the Coherence cache configuration file into the session cache configuration file.Note that in the cache scheme mappings in this file, you cannot use wildcards to specify cache names. You must provide, at least, a common prefix for application cache names.
- Ensure that modified session cache configuration file is used by the Coherence members in the cluster.The cache and session configuration must be consistent across WebLogic Servers and Coherence cache servers.