com.compoze.collab
Class ItemComparator

java.lang.Object
  com.compoze.collab.ItemComparator

All Implemented Interfaces:

java.util.Comparator

public class ItemComparator
extends java.lang.Object
implements java.util.Comparator

Comparator for arbitrary properties on items. Items are compared by one or more property values. The following sort criteria is used for each of the different property value types:

Value Type	Sort Criteria
Key.VALUE_STRING	Collator
Key.VALUE_SHORT	Comparable
Key.VALUE_INTEGER	Comparable
Key.VALUE_LONG	Comparable
Key.VALUE_BOOLEAN	false < true
Key.VALUE_FLOAT	Comparable
Key.VALUE_DOUBLE	Comparable
Key.VALUE_BINARY	IllegalArgumentException
Key.VALUE_DATE	Comparable
Key.VALUE_ITEM	IllegalArgumentException
Key.VALUE_ENUMELEMENT	Comparable
Key.VALUE_UNKNOWN	Comparable or IllegalArgumentException if unknown objects do not implement Comparable
Key.VALUE_SERIALIZABLE	Comparable or IllegalArgumentException if serialized objects do not implement Comparable

Constructor Summary

ItemComparator(SortProperty[] sortProps)
Constructor (default Collator).

ItemComparator(SortProperty[] sortProps, java.text.Collator collator)
Constructor.

Method Summary

int	compare(java.lang.Object o1, java.lang.Object o2)
boolean	equals(java.lang.Object obj)

Methods inherited from class java.lang.Object

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

Constructor Detail

ItemComparator

public ItemComparator(SortProperty[] sortProps)

Constructor (default Collator).

Parameters:

sortProps - the sort properties (not null). Properties earlier in the array have higher sort priority.

ItemComparator

public ItemComparator(SortProperty[] sortProps,
                      java.text.Collator collator)

Constructor.

Parameters:

sortProps - the sort properties (not null). Properties earlier in the array have higher sort priority.

collator - the collator for comparing String values (null for default Collator)

Method Detail

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)

Specified by:

compare in interface java.util.Comparator

See Also:

(Object, Object)

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Comparator

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)