SingleTon Property very important if code deployed in Cluster Env

SingleTon Property very important if code deployed in Cluster Env



 <reference name="CopyMoveFileOperation"   ui:wsdlLocation="CopyMoveFileOperation.wsdl">
    <interface.wsdl interface="http://xmlns.oracle.com/pcbpel/adapter/file/CopyMoveFileOperation#wsdl.interface(CopyFile_ptt)"/>
    <binding.jca config="CopyMoveFileOperation_file.jca">
       <property name="singleton">true</property>
    </binding.jca>
  </reference>