Module swim.structure

Package swim.structure.form

Class ItemForm

java.lang.Object

swim.structure.Form<Item>

swim.structure.form.ItemForm

public final class ItemForm
extends Form<Item>

Fall-through "transformation" between a structural Item and a nominal Item. Both mold(swim.structure.Item) and cast(swim.structure.Item) simply return the Item argument itself.

Constructor Summary

Constructors

Constructor	Description
ItemForm(Item unit)

Method Summary

Modifier and Type	Method	Description
Item	cast(Item item)	Converts a structurally typed item into a nominally typed Java object.
Item	mold(Item item)	Converts a nominally typed Java object into its structurally typed equivalent.
Class<Item>	type()	Returns the reified Class of type T.
Item	unit()	Returns a default–possibly null–value of type T.
Form<Item>	unit(Item unit)	Returns a version of this Form with the given unit value.

Methods inherited from class swim.structure.Form

cast, forArray, forBigInteger, forBoolean, forBuiltin, forByte, forByteBuffer, forCharacter, forClass, forClass, forCollection, forDouble, forFloat, forInteger, forItem, forList, forLong, forMap, forMap, forNumber, forSet, forShort, forString, forValue, isBuiltin, mold, tag, tag

Methods inherited from class java.lang.Object

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

Constructor Details

ItemForm

public ItemForm(Item unit)

Method Details

unit

public Item unit()

Description copied from class: Form

Returns a default–possibly null–value of type T. Used as the fallback return value when coercing an invalid structural value.

Overrides:

unit in class Form<Item>

unit

public Form<Item> unit(Item unit)

Description copied from class: Form

Returns a version of this Form with the given unit value.

Overrides:

unit in class Form<Item>

type

public Class<Item> type()

Description copied from class: Form

Returns the reified Class of type T.

Specified by:

type in class Form<Item>

mold

public Item mold(Item item)

Description copied from class: Form

Converts a nominally typed Java object into its structurally typed equivalent. The returned Item must never be null.

Specified by:

mold in class Form<Item>

cast

public Item cast(Item item)

Description copied from class: Form

Converts a structurally typed item into a nominally typed Java object. The passed-in item is assumed to be non-null.

Specified by:

cast in class Form<Item>