'datas' is gramatically incorrect. We still use this notation is to indicate that this variable represents a collection of column_family_data.

Accessors for the implementation object.

<p>Return a heap-allocated iterator over the contents of the database. The result of newIterator() is initially invalid (caller must call one of the S

REQUIRES: This version has been saved (see VersionSet::SaveTo)

<p>Position at the first entry in the source whose key is that or past target.</p> <p>The iterator is valid after this call if the source contains a

This is inside DB mutex, so we can't sleep and need to minimize frequency to get time. If it turns out to be a performance issue, we can redesign the

Append value onto end of (list: key) TODO: Make this O(1) time. Might require MergeOperator. : throws RedisListException

Loads the necessary library files. Calling this method twice will have no effect. By default the method extracts the shared library for loading at jav

Returns true iff the status indicates success.

Makes a successful assertion result.

The main write queue. This is the only write queue that updates LastSequence. When using one write queue, the same sequence also indicates the last pu

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<p>Returns the default environment suitable for the current operating system.</p> <p>The result of {@code getDefault()} is a singleton whose ownershi

Return true iff "x" is a prefix of "*this"

Clears the object.

Get the sequence number from the internal key

Log error message

Set the underlying Iterator to _iter and return previous underlying Iterator.

Allow increasing the number of worker threads.

Uses the default test db.

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Retrieve the serialized version of this batch. @return the serialized representation of this write batch. @throws RocksDBException if an error occur

Returns the list of file meta data of the specified compaction input level. REQUIREMENT: "compaction_input_level" must be >= 0 and < "input_levels()"