src/java/org/apache/cassandra/utils/MerkleTree.java
/**
     * Splits the range containing the given token, if no tree limits would be
     * violated. If the range would be split to a depth below hashdepth, or if
     * the tree already contains maxsize subranges, this operation will fail.
     *
     * @return True if the range was successfully split.
     */
Splits the range containing the given token, if no tree limits would be
violated. If the range would be split to a depth below hashdepth, or if
the tree already contains maxsize subranges, this operation will fail.

@return True if the range was successfully split.
Splits the range containing the given token if no tree limits would be violated . If the range would be split to a depth below hashdepth or if the tree already contains maxsize subranges this operation will fail . @return True if the range was successfully split .
public boolean split(Token t)
    {
        if (!(size < maxsize))
            return false;
        try
        {
            root = splitHelper(root, fullRange.left, fullRange.right, (byte)0, t);
        }
        catch (StopRecursion.TooDeep e)
        {
            return false;
        }
        return true;
    }
public boolean split ( Token t ) { if ( ! ( size < maxsize ) ) return false ; try { root = splitHelper ( root , fullRange . left , fullRange . right , ( byte ) 0 , t ) ; } catch ( StopRecursion . TooDeep e ) { return false ; } return true ; }
Splits the range containing the given token, if no tree limits would be
 violated.
Splits the range containing the given token if no tree limits would be violated .