boolean acquireIndexReadLockForRemove() {
    boolean success = removeIndexLock.readLock().tryLock();
    if (success) {
      internalIndexStats.incReadLockCount(1);
      if (logger.isDebugEnabled()) {
        logger.debug("Acquired read lock on index {}", getName());
      }
    }
    return success;
  }
Converts Strings to PdxStrings and vice-versa based on the isIndexedPdxKeys flag

@return PdxString or String based on isIndexedPdxKeys flag
geode-core/src/main/java/org/apache/geode/cache/query/internal/index/AbstractIndex.java