ERXEqualator Class Reference

Inherited by ERXEqualator._EOEqualsEqualator, and ERXEqualator._SafeEqualsEqualator.

Collaboration diagram for ERXEqualator:

[legend]

List of all members.

Classes
class	_EOEqualsEqualator
class	_SafeEqualsEqualator
Public Member Functions
abstract boolean	objectIsEqualToObject (Object o1, Object o2)
Static Public Attributes
static final ERXEqualator	EOEqualsEqualator = new _EOEqualsEqualator()
static final ERXEqualator	SafeEqualsEqualator = new _SafeEqualsEqualator()

---

Detailed Description

This class is an abstract class that defines an API for determining if two objects are equal. This is useful if you'd like to have a custom definition of what it means for two objects to be equal in one context (within an array, for example) while not changing the meaning of equality in another (by overriding equals()). This is especially useful for doing non-editing-context-sensitive equality checks between EOs.

---

Member Function Documentation

abstract boolean objectIsEqualToObject	(	Object	o1,
		Object	o2
	)			[pure virtual]

Performs the equality check between o1 and o2. What the equality check means between the objects and when either object is null or when objects are of different classes is the subclass's responsibility.

Parameters:

	o1	first object to compare.
	o2	second object to compare.

Returns:

true if o1 and o2 are to be considered equal, false otherwise.

Implemented in ERXEqualator._SafeEqualsEqualator, and ERXEqualator._EOEqualsEqualator.

---

Member Data Documentation

final ERXEqualator EOEqualsEqualator = new _EOEqualsEqualator() [static]

Provides EO equality checks regardless of the editing context the objects are registered in.

See also:

ERXEOControlUtilities.eoEquals(EOEnterpriseObject, EOEnterpriseObject)

final ERXEqualator SafeEqualsEqualator = new _SafeEqualsEqualator() [static]

Provides a safe equality check that won't throw if one or both of the objects is null.

See also:

ERXExtensions.safeEquals(Object, Object)

---

The documentation for this class was generated from the following file:

• /opt/source/Wonder/Frameworks/Core/ERExtensions/Sources/er/extensions/foundation/ERXEqualator.java