public void releaseIndexReadLockForRemove() {
    removeIndexLock.readLock().unlock();
    internalIndexStats.incReadLockCount(-1);
    if (logger.isDebugEnabled()) {
      logger.debug("Released read lock on index {}", getName());
    }
  }
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