@Override
  public void beforeIndexLookup(Index index, int oper, Object key) {}
Called once right before the query subsystem has requested that the indexing subsystem attempt
an index lookup.

@param index The index being used for the lookup
@param oper The operation being attemped on the index. AbstractIndex
geode-core/src/main/java/org/apache/geode/cache/query/internal/QueryObserverAdapter.java