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org.jdaemon.util
Class AttributeList  

java.lang.Object
  org.jdaemon.util.AttributeList

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public class AttributeList

extends java.lang.Object

Simple class for dynamically created list of Name/Value pairs. This class is optimised for fast creation rather than fast searches; Currently implemented using QuickList. However note that, like QuickList, adding an entry to an AttributeList does not change the original list, but rather returns a new list which has the additional element added.

Version:

0.1

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Nested Class Summary
static class	AttributeList.Entry           Class for an entry in an AttributeList; Basically just a name/value pair

 

Field Summary
private  QuickList	attributes           Underlying store of Entry objects
static AttributeList	EMPTY
protected static java.util.Comparator	NAME_COMPARATOR           Comparator for Entry objects that works on the name part only

 

Constructor Summary
private	AttributeList()
protected	AttributeList(QuickList attributes)           Protected constructor that allows an AttributeList to be created from a QuickList of Entry objects.

 

Method Summary
AttributeList	addAttribute(java.lang.String name, java.lang.Object value)           Add an attribute (name,value) pair to an existing attribute list.
java.lang.Object	get(java.lang.String name)           Find a value for a given name in this attribute list.
AttributeList.Entry	head()           get topmost (last added) entry in attribute list.
boolean	isEmpty()
AttributeList	tail()           Get this attribute list less the topmost entry.
java.lang.String	toString()           Convert this list to a string.
protected static void	ValidateName(java.lang.String name)           Utility function - checks that name is a valid name

 

Methods inherited from class java.lang.Object

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

 

Field Detail

NAME_COMPARATOR

protected static final java.util.Comparator NAME_COMPARATOR

Comparator for Entry objects that works on the name part only

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EMPTY

public static final AttributeList EMPTY

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attributes

private QuickList attributes

Underlying store of Entry objects

Constructor Detail

AttributeList

protected AttributeList(QuickList attributes)

Protected constructor that allows an AttributeList to be created from a QuickList of Entry objects. *

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AttributeList

private AttributeList()

Method Detail

ValidateName

protected static void ValidateName(java.lang.String name)

Utility function - checks that name is a valid name

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addAttribute

public AttributeList addAttribute(java.lang.String name,
                                  java.lang.Object value)

Add an attribute (name,value) pair to an existing attribute list.

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get

public java.lang.Object get(java.lang.String name)

Find a value for a given name in this attribute list.

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toString

public java.lang.String toString()

Convert this list to a string.

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head

public AttributeList.Entry head()

get topmost (last added) entry in attribute list.

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tail

public AttributeList tail()

Get this attribute list less the topmost entry.

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isEmpty

public boolean isEmpty()

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