org.treetank.axis

Class ItemList

java.lang.Object

org.treetank.axis.ItemList

public final class ItemList
extends Object

ItemList

Data structure to store XPath items.

This structure is used for atomic values that are needed for the evaluation of a query. They can be results of a query expression or be specified directly in the query e.g. as literals perform an arithmetic operation or a comparison.

Since these items have to be distinguishable from nodes their key will be a negative long value (node key is always a positive long value). This value is retrieved by negate their index in the internal data structure.

Constructor Summary

Constructors

Constructor and Description
ItemList() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
int	addItem(AtomicValue pItem) Adding to this list.
AtomicValue	getItem(long pKey) Getting an AtomicValue from the list.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ItemList

public ItemList()

Constructor. Initializes the list.

Method Detail

addItem

public int addItem(AtomicValue pItem)

Adding to this list.

Parameters:

pItem - setting and item to this list

getItem

public AtomicValue getItem(long pKey)

Getting an AtomicValue from the list.

Parameters:

pKey - for the value

Returns:

an AtomicValue

toString

public String toString()

Overrides:

toString in class Object