xml - Returning nodeset based on two other nodes being equal -


i trying return specific nodeset based on value of 1 node = node.

the expression //*[local-name()='jms-listener']/@busidref=//*[local-name()='jms-bus']/@busid returns boolean from

<providers>       <jms-provider name="jbossmq" connection-factory="connectionfactory">           <jms-bus busid="quickstartgwchannel">               <jms-message-filter                   dest-type="queue"                   dest-name="queue/quickstart_helloworld_request_gw"                />           </jms-bus>           <jms-bus busid="quickstartesbchannel">               <jms-message-filter                   dest-type="queue"                   dest-name="queue/quickstart_helloworld_request_esb"               />           </jms-bus>        </jms-provider>   </providers>    <services>     <service          category="firstserviceesb"          name="simplelistener"          description="hello world">         <listeners>             <jms-listener name="jms-gateway"                 busidref="quickstartgwchannel"                 is-gateway="true"             />             <jms-listener name="helloworld"                           busidref="quickstartesbchannel"             />         </listeners>         <actions mep="oneway">                <action name="action1"                  class="org.jboss.soa.esb.samples.quickstart.helloworld.myjmslisteneraction"                  process="displaymessage"                  />                       <action name="action2" class="org.jboss.soa.esb.actions.systemprintln">                   <property name="printfull" value="false"/>                 </action>                 <!-- next action continuous integration testing -->                 <action name="teststore" class="org.jboss.soa.esb.actions.testmessagestore"/>         </actions>     </service>   </services>

i need return quickstartgwchannel.

the conditional check needs property of node. try this:

//jms-listener[@busidref=//jms-bus/@busid]/@busidref

which returns:

quickstartgwchannel quickstartesbchannel

the xpath saying find jms-listener node @busidref attribute equal jms-bus node's @busid attribute. return @busidref attribute values of nodes.

if need use local-name, above xpath be:

//*[local-name()='jms-listener'][@busidref=//*[local-name()='jms-bus']/@busid]/@busidref

if want check is-gateway attribute true, add list of predicates:

//*[local-name()='jms-listener'][@busidref=//*[local-name()='jms-bus']/@busid][@is-gateway='true']/@busidref

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