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The border between Before and After areas consists of two WAL records - ConsistentCutStartRecord and ConsistentCutFinishRecord. It guarantees that the Before consists of:
1. transactions committed before ConsistentCutStartRecord and weren't included into ConsistentCutFinishRecord#after();
2. transactions committed between ConsistentCutStartRecord and ConsistentCutFinishRecord and and ConsistentCutFinishRecord and were included into ConsistentCutFinishRecord#before().

On the picture below the Before area consist of transactions colored to yellow, while After is green.

/** */
public class ConsistentCutStartRecord extends WALRecord {
	/** Marker that inits Consistent Cut. */
	private final ConsistentCutMarker marker;
}


/** */
public class ConsistentCutFinishRecord extends WALRecord {
    /**
     * Collections of transactions committed BEFORE.
     */
    private final Set<GridCacheVersion> before;

     /**
     * Collections of transactions committed AFTER.
     */
    private final Set<GridCacheVersion> after;
 }

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