Class DataInput

All Implemented Interfaces:
Direct Known Subclasses:
ByteArrayDataInput, ByteBuffersDataInput, FST.BytesReader, IndexInput, InputStreamDataInput, PagedBytes.PagedBytesDataInput

public abstract class DataInput extends Object implements Cloneable
Abstract base class for performing read operations of Lucene's low-level data types.

DataInput may only be used from one thread, because it is not thread safe (it keeps internal state like file position). To allow multithreaded use, every DataInput instance must be cloned before used in another thread. Subclasses must therefore implement clone(), returning a new DataInput which operates on the same underlying resource, but positioned independently.