core/src/main/java/com/orientechnologies/common/collection/closabledictionary/OClosableLinkedContainer.java
private void afterRead(OClosableEntry<K, V> entry) {
    final int bufferIndex = readBufferIndex();
    final long writeCount = putEntryInReadBuffer(entry, bufferIndex);
    drainReadBuffersIfNeeded(bufferIndex, writeCount);
  }
private void afterRead(OClosableEntry<K, V> entry) {
    final int bufferIndex = readBufferIndex();
    final long writeCount = putEntryInReadBuffer(entry, bufferIndex);
    drainReadBuffersIfNeeded(bufferIndex, writeCount);
  }
Method is used to log operations which do not change LRU list content but affect order of items inside of LRU list.
Such changes may be delayed till buffer will be full.

@param entry Entry which was affected by operation.