Package org.joda.util

Common utility classes, interfaces and exceptions

See:
Description

Interface Summary

Identifiable	Interface for objects which can be identified through a unique identifier.
TreeIterator	TreeIterator adds to an iterator by allowing access to the parent of each node during the iteration.
TreeNode	TreeNode defines a node in a tree structure.
TreeNode.Internal	TreeNode implementors should implement TreeNode.Internal instead of just TreeNode.

Class Summary

ArrayTreeNode	ArrayTreeNode implements the TreeNode interface.
ArrayTreeNode.DepthFirstTreeIterator	Implementation of TreeIterator that navigates through the nodes in a depth first order.
ArrayTreeNode.DepthFirstTreeIterator.Entry
ArrayTreeNode.TreeArrayList	List of TreeNodes that manages the parent behaviour
Identifier	Class which provides unique identifiers for objects.
IdentityBasedHashMap	This class implements the Map interface with a hash table, using reference-equality in place of object-equality when comparing keys (and values).
IdentityBasedHashSet	Set based on Hash principles which check for equality, not equals.
IdentityBasedHashSet.Entry	Hash entry.
Reflection	Reflection utilities.
Serialization	Serialization utilities.
Validation	Validation utility.

Exception Summary

IllegalArgumentJodaException	Exception thrown when an input argument is unacceptable to a method.
IllegalStateJodaException	Exception thrown when an attempt was made to query or modify an object when its state did not permit it.
IndexOutOfBoundsJodaException	Exception thrown when an attempt was made to access a list or array with an index that was out of range.
NullArgumentJodaException	Exception thrown when an input argument is null and this is unacceptable.

Package org.joda.util Description

Common utility classes, interfaces and exceptions

The util package provides low level utility functions for the Joda framework.

Marker interfaces

Marker interfaces are provided for Immutable, Readable and Writable objects. These can be used to mark classes which can be categorised.

Exceptions

Exception classes are provided that store the object that caused the exception. This is similar to the event source concept in event handling. The exception classes also store other useful fields from the exception.

Utilities

General purpose utilities for Serialization, Validation, Reflection, Identifiication are provided. Also provided is an IdentityHashSet for Java 1.3 compatability.