Serialized Form

Package org.apache.druid.extendedset.intset

Class org.apache.druid.extendedset.intset.ConciseSet extends AbstractIntSet implements Serializable

serialVersionUID:

560068054685367266L

Serialization Methods

readObject

private void readObject(ObjectInputStream s)
                 throws IOException,
                        ClassNotFoundException

Reconstruct the instance from a stream

Throws:

IOException

ClassNotFoundException

writeObject

private void writeObject(ObjectOutputStream s)
                  throws IOException

Save the state of the instance to a stream

Throws:

IOException

Serialized Fields

simulateWAH

boolean simulateWAH

true if the class must simulate the behavior of WAH

words

int[] words

This is the compressed bitmap, that is a collection of words. For each word:

• 1* (0x80000000) means that it is a 31-bit literal.
• 00* (0x00000000) indicates a sequence made up of at most one set bit in the first 31 bits, and followed by blocks of 31 0's. The following 5 bits (00xxxxx*) indicates which is the set bit ( 00000 = no set bit, 00001 = LSB, 11111 = MSB), while the remaining 25 bits indicate the number of following 0's blocks.
• 01* (0x40000000) indicates a sequence made up of at most one unset bit in the first 31 bits, and followed by blocks of 31 1's. (see the 00* case above).

Note that literal words 0xFFFFFFFF and 0x80000000 are allowed, thus zero-length sequences (i.e., such that getSequenceCount() == 0) cannot exists.