immutable Comparison Table

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immutable comparison table

Subject have solution have related patterns have context have forces have problem has definition is a subtopic of is a kind of is an instance of

design pattern zero or more related design patterns a context one or more forces a sentence or two explaining the main difficulty being tackled A pattern useful for the design of software 6.1 - Introduction to Patterns pattern

immutable
Ensure that the constructor of the immutable class is the only place where the values of instance variables are set or modified.
If a method that would otherwise modify an instance variable must be present, then it has to return a new instance of the class.
Read-Only Interface pattern provides the same capability as immutable, except that certain privileged classes are allowed to make changes to instances.
An immutable object is an object which has a state that never changes after creation.
An important reason for using an immutable object is that other objects can trust its content to not unexpectedly change.
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The immutability must be enforced.
There must be no loopholes that would allow 'illegal' modification of an immutable object.
How do you create a class whose instances are immutable? A pattern in which the instances of a class cannot change state after creation 6.10 - The Immutable Pattern design pattern

Subject	have solution	have related patterns	have context	have forces	have problem	has definition	is a subtopic of	is a kind of	is an instance of
design pattern		zero or more related design patterns	a context	one or more forces	a sentence or two explaining the main difficulty being tackled	A pattern useful for the design of software	6.1 - Introduction to Patterns	pattern
immutable	Ensure that the constructor of the immutable class is the only place where the values of instance variables are set or modified. If a method that would otherwise modify an instance variable must be present, then it has to return a new instance of the class.	Read-Only Interface pattern provides the same capability as immutable, except that certain privileged classes are allowed to make changes to instances.	An immutable object is an object which has a state that never changes after creation. An important reason for using an immutable object is that other objects can trust its content to not unexpectedly change.	html> The immutability must be enforced. There must be no loopholes that would allow 'illegal' modification of an immutable object.	How do you create a class whose instances are immutable?	A pattern in which the instances of a class cannot change state after creation	6.10 - The Immutable Pattern		design pattern

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