Geomajas Community Documentation
A pipeline can be defined by specifying the pipeline name and the pipeline steps.
<bean class="org.geomajas.service.pipeline.PipelineInfo"> <property name="pipelineName" value="pipelineTest"/> <property name="pipeline"> <list> <bean class="org.geomajas.internal.service.pipeline.Step1"> <property name="id" value="s1"/> </bean> <bean class="org.geomajas.internal.service.pipeline.Step2"> <property name="id" value="s2"/> </bean> <bean class="org.geomajas.internal.service.pipeline.Step3"> <property name="id" value="s3"/> </bean> </list> </property> </bean>
Example 9.1. Simple pipeline definition
A pipeline can be layer specific and can refer to a delegate (bean reference). The use of the delegate means that the pipeline definition (list of steps) is copied from the delegate.
<bean id="inter" class="org.geomajas.service.pipeline.PipelineInfo"> <property name="pipelineName" value="pipelineTest"/> <property name="layerId" value="inter"/> <property name="delegatePipeline" ref="stop" /> </bean>
Example 9.2. Layer specific pipeline which refers to a delegate
When referring to the pipeline definition using a delegate, the pipeline can also be extended by inserting additional steps at the extension hooks. You can pass a map of "extensions" which are named steps. When a extension hook of the name is found, that step will be included in the pipeline just after the hook definition.
<bean id="hooked2" class="org.geomajas.service.pipeline.PipelineInfo"> <property name="pipelineName" value="hookedTest"/> <property name="layerId" value="delegate"/> <property name="delegatePipeline" ref="hooked" /> <property name="extensions"> <map> <entry key="PreStep2"> <bean class="org.geomajas.internal.service.pipeline.Step2"> <property name="id" value="ps2"/> </bean> </entry> </map> </property> </bean>
Example 9.3. Extending a delegate pipeline