https://lucene.apache.org/core/4_6_1/codecs/org/apache/lucene/codecs/intblock/package-summary.html
org.apache.lucene.codecs.intblock (Lucene 4.6.1 API)
apache lucenecodecsapi
https://lucene.apache.org/core/4_2_0/codecs/org/apache/lucene/codecs/intblock/class-use/VariableIntBlockIndexInput.html
Uses of Class org.apache.lucene.codecs.intblock.VariableIntBlockIndexInput (Lucene 4.2.0 API)
https://lucene.apache.org/core/4_2_0/codecs/org/apache/lucene/codecs/intblock/class-use/VariableIntBlockIndexOutput.html
Uses of Class org.apache.lucene.codecs.intblock.VariableIntBlockIndexOutput (Lucene 4.2.0 API)