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# Configuring Cache Coordination Change Propagation at the Project Level

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If you plan to use a coordinated cache (see "Understanding Cache Coordination"), you can configure how and under what conditions a coordinated cache propagates changes.

Table: Project Support for Identity Map Configuration summarizes which projects support cache coordination change propagation configuration.

Project Support for Cache Coordination Change Propagation Configuration

Descriptor | Using TopLink Workbench | Using Java
--- | --- | ---
Relational Projects |  |
EIS Projects |  |
XML Projects |  |

The cache coordination change propagation options you configure at the project level apply globally to all descriptors. Use this section to define global options for a TopLink project.

You can override the project-level configuration by defining cache coordination change propagation options at the descriptor level. For information, see "Configuring Cache Coordination Change Propagation at the Descriptor Level".

To complete your coordinated cache configuration, see Configuring a Coordinated Cache.

Note: When using TopLink Workbench, changing the project's default cache coordination change propagation option does not affect descriptors that already exist in the project; only newly added descriptors ar affected.