See: Description
| Interface | Description | 
|---|---|
| IProxyData | This is the inteface that is returned by the  IndexContextwhen
 thePROVIDE_INDEXED_DATA_FOR_PROXIES_AND_PARENTSoption is set
 during queries. | 
| Class | Description | 
|---|---|
| QueryJob<T> | Utility class that extends the  org.eclipse.core.runtime.jobs.Jobclass to run the queries asynchronously. | 
IProxyData:
       This is the inteface that is returned by the IndexContext when
       the PROVIDE_INDEXED_DATA_FOR_PROXIES_AND_PARENTS option is set
       during queries. This interface is used by clients who are interested in
       querying for attribute and reference information on returned proxies and their
       parents.QueryJob:
       Utility class that extends the org.eclipse.core.runtime.jobs.Job
       class to run the queries asynchronously. This job is a user job by default.