de.aitools.aq.invertedindex.core
Class Postlist.Head

java.lang.Object
  com.sun.jna.Structure
      de.aitools.aq.invertedindex.core.Postlist.Head

Enclosing class:

Postlist<V extends Value>

public static class Postlist.Head
extends com.sun.jna.Structure

A class representing the head of a postlist, that contains some meta-information.

Author:

martin.trenkmann@uni-weimar.de

Nested Class Summary

Nested classes/interfaces inherited from class com.sun.jna.Structure

com.sun.jna.Structure.ByReference, com.sun.jna.Structure.ByValue

Field Summary

int	totalSize
int	valueCount
short	valueSize

Fields inherited from class com.sun.jna.Structure

ALIGN_DEFAULT, ALIGN_GNUC, ALIGN_MSVC, ALIGN_NONE

Constructor Summary

Postlist.Head()

Method Summary

int	getTotalSize() The total size in bytes of all values stored in the referenced postlist.
int	getValueCount() Returns the number of values stored in the corresponding postlist.
short	getValueSize() The native size in bytes of a single postlist value.
java.io.PrintStream	print(java.io.PrintStream stream) Prints the content of this object in a human-readable form to the given PrintStream.

Methods inherited from class com.sun.jna.Structure

autoRead, autoRead, autoWrite, autoWrite, clear, equals, getAutoRead, getAutoWrite, getPointer, hashCode, newInstance, read, readField, setAutoRead, setAutoSynch, setAutoWrite, size, toArray, toArray, toString, toString, write, writeField, writeField

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

valueCount

public int valueCount

valueSize

public short valueSize

totalSize

public int totalSize

Constructor Detail

Postlist.Head

public Postlist.Head()

Method Detail

getValueCount

public int getValueCount()

Returns the number of values stored in the corresponding postlist.

Returns:

the length of the postlist

getValueSize

public short getValueSize()

The native size in bytes of a single postlist value. If this size is not constant as for SingleInt for instance, but variable as for SingleString, the returned value is zero.

Returns:

the size of some value in bytes

getTotalSize

public int getTotalSize()

The total size in bytes of all values stored in the referenced postlist.

Returns:

the size of the postlist's payload

print

public java.io.PrintStream print(java.io.PrintStream stream)

Prints the content of this object in a human-readable form to the given PrintStream.

Parameters:

stream - the stream to print to

Returns:

the stream instance itself