gov.lbl.fastbit.FastBitStringReader Class Reference

Java StringReader for FastBit. More...

Classes
class	ReadHandle
	An auxiliary thread-safe class to hold file locks and buffers. More...

Public Member Functions
	FastBitStringReader ()
	FastBitStringReader constructor with default buffer length.
	FastBitStringReader (long bufferSize)
	FastBitStringReader constructor. More...
FastBitStringReader.ReadHandle	getHandle (FastBit fb, FastBit.QueryHandle fbHandle, String partition, String charsetName)
	Create FastBitStringReader.ReadHandle. More...
String[]	getQualifiedStrings (final FileChannel fc, final FastBitStringReader.ReadHandle handle, String column) throws FastBitStringReaderException
	Thread-safe FastBit String[] getter. More...
String[]	getQualifiedStrings (final FastBitStringReader.ReadHandle handle, String column) throws FastBitStringReaderException
	Thread-safe FastBit String[] getter. More...

Detailed Description

Java StringReader for FastBit.

It converts the strings retured from FastBit into strings that can be accessed from a Java program. See java/tests/TestFastBitJava.java for an example of use.

Author

Andrey Kolchanov

Constructor & Destructor Documentation

gov.lbl.fastbit.FastBitStringReader.FastBitStringReader ( long  bufferSize )

inline

FastBitStringReader constructor.

Parameters

bufferSize

Member Function Documentation

FastBitStringReader.ReadHandle gov.lbl.fastbit.FastBitStringReader.getHandle ( FastBit  fb, FastBit.QueryHandle  fbHandle, String  partition, String  charsetName  )

inline

Create FastBitStringReader.ReadHandle.

Currently FastBit.QueryHandle has not methods to get FastBit and partition.

Parameters

fb
fbHandle
partition
charsetName

Returns

String [] gov.lbl.fastbit.FastBitStringReader.getQualifiedStrings ( final FileChannel  fc, final FastBitStringReader.ReadHandle  handle, String  column  ) throws FastBitStringReaderException

inline

Thread-safe FastBit String[] getter.

This function does not open and lock file.

Parameters

fc
handle
column

Returns

Exceptions

FastBitStringReaderException

String [] gov.lbl.fastbit.FastBitStringReader.getQualifiedStrings ( final FastBitStringReader.ReadHandle  handle, String  column  ) throws FastBitStringReaderException

inline

Thread-safe FastBit String[] getter.

This function opens and closes file.

Parameters

handle
column

Returns

Exceptions

FastBitStringReaderException

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The documentation for this class was generated from the following file:

• /Users/john/src/ibis/java/gov/lbl/fastbit/FastBitStringReader.java