Class SignedAsset

java.lang.Object

edu.uky.cs.nil.tt.world.Asset

edu.uky.cs.nil.tt.world.SignedAsset

All Implemented Interfaces:

Described, Logical, Unique

Direct Known Subclasses:

Action, Ending, Variable

public abstract class SignedAsset
extends Asset

A signed asset is an asset which has a unique signature among all other assets of that type in a story world. A signed asset's name is equivalent to the result of its signature's toString() method.

Author:

Stephen G. Ware

Field Summary

Fields

Modifier and Type	Field	Description
final Signature	signature	The asset's unique signature

Fields inherited from class Asset

id, name

Constructor Summary

Constructors

Constructor	Description
SignedAsset(int id, Signature signature, String description)	Constructs a new signed asset.

Method Summary

Modifier and Type	Method	Description
protected abstract SignedAsset	setSignature(Signature signature)	Returns a new signed asset that is the same as this asset, except that its signature and name are the given value.
abstract SignedAsset	substitute(Function<Object,Object> substitution)	Returns a logical object identical to this one, except that its logical elements have been replaced according to the given substitution.

Methods inherited from class Asset

equals, getDescription, getID, getName, hashCode, setDescription, setID, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

signature

public final Signature signature

The asset's unique signature

Constructor Details

SignedAsset

public SignedAsset(int id,
 Signature signature,
 String description)

Constructs a new signed asset.

Parameters:

id - the asset's unique ID number

signature - the asset's unique signature

description - the asset's description

Method Details

setSignature

protected abstract SignedAsset setSignature(Signature signature)

Returns a new signed asset that is the same as this asset, except that its signature and name are the given value.

Parameters:

signature - the signature and name the new asset should have

Returns:

a signed asset identical to this asset, except with the given signature and name

substitute

public abstract SignedAsset substitute(Function<Object,Object> substitution)

Description copied from interface: Logical

Returns a logical object identical to this one, except that its logical elements have been replaced according to the given substitution. A substitution defines how some logical formula (the input to the function) should be replaced with a different formula (the output of the function).

Specified by:

substitute in interface Logical

Specified by:

substitute in class Asset

Parameters:

substitution - a function which maps logical formula that should be replaced to the formula they should be replaced with

Returns:

an identical object, except that its logical formula have been replaced according to the substitution