org.apache.hadoop.hive.ql.io.orc

Class RecordReaderUtils

java.lang.Object

org.apache.hadoop.hive.ql.io.orc.RecordReaderUtils

public class RecordReaderUtils
extends Object

Stateless methods shared between RecordReaderImpl and EncodedReaderImpl.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RecordReaderUtils.ByteBufferAllocatorPool

Constructor Summary

Constructors

Constructor and Description
RecordReaderUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static int	getIndexPosition(OrcProto.ColumnEncoding.Kind columnEncoding, OrcProto.Type.Kind columnType, OrcProto.Stream.Kind streamType, boolean isCompressed, boolean hasNulls) Get the offset in the index positions for the column that the given stream starts.
static void	readDirect(org.apache.hadoop.fs.FSDataInputStream file, int len, ByteBuffer directBuf)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RecordReaderUtils

public RecordReaderUtils()

Method Detail

getIndexPosition

public static int getIndexPosition(OrcProto.ColumnEncoding.Kind columnEncoding,
                   OrcProto.Type.Kind columnType,
                   OrcProto.Stream.Kind streamType,
                   boolean isCompressed,
                   boolean hasNulls)

Get the offset in the index positions for the column that the given stream starts.

Parameters:

columnEncoding - the encoding of the column

columnType - the type of the column

streamType - the kind of the stream

isCompressed - is the file compressed

hasNulls - does the column have a PRESENT stream?

Returns:

the number of positions that will be used for that stream

readDirect

public static void readDirect(org.apache.hadoop.fs.FSDataInputStream file,
              int len,
              ByteBuffer directBuf)
                       throws IOException

Throws:

IOException