uk.ac.ed.epcc.webapp.forms.inputs

Class ListInputWrapper<V,T>

java.lang.Object

uk.ac.ed.epcc.webapp.forms.inputs.WrappingInput<V>

uk.ac.ed.epcc.webapp.forms.inputs.ListInputWrapper<V,T>

Type Parameters:

V -

T -

All Implemented Interfaces:

Input<V>, ItemInput<V,T>, ListInput<V,T>, SuggestedItemInput<V,T>

Direct Known Subclasses:

OptionalListInputWrapper

public abstract class ListInputWrapper<V,T>
extends WrappingInput<V>
implements ListInput<V,T>

Constructor Summary

Constructors

Constructor and Description
ListInputWrapper(Input nested)

Method Summary

Modifier and Type	Method and Description
<R> R	accept(InputVisitor<R> vis)
V	convert(java.lang.Object v) Perform any supported type conversions to to generate a value of the target type
int	getCount() get the number of suggested items.
protected ListInput<V,T>	getInner()
T	getItem() get the domain Object associated with the current value
T	getItembyValue(V value) get the domain object from the Input value if defined
java.util.Iterator<T>	getItems() get a list of domain objects that are being selected
java.lang.String	getTagByItem(T item) get an identifying tag string from the domain object
java.lang.String	getTagByValue(V value) get the tag string from the actual value of the input
boolean	isValid(T item) Test if an object of the Item type is one of the possible items.
void	setItem(T item) Set the value of the input using an item

Methods inherited from class uk.ac.ed.epcc.webapp.forms.inputs.WrappingInput

addValidator, getKey, getNested, getPrettyString, getString, getValue, removeValidator, setKey, setValue, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.ac.ed.epcc.webapp.forms.inputs.ListInput

getText

Methods inherited from interface uk.ac.ed.epcc.webapp.forms.inputs.Input

addValidator, getKey, getPrettyString, getString, getValue, isEmpty, removeValidator, setKey, setValue, validate

Constructor Detail

ListInputWrapper

public ListInputWrapper(Input nested)

Parameters:

nested -

Method Detail

getInner

protected ListInput<V,T> getInner()

getItembyValue

public T getItembyValue(V value)

Description copied from interface: ItemInput

get the domain object from the Input value if defined

Specified by:

getItembyValue in interface ItemInput<V,T>

Parameters:

value - input Value

Returns:

Object the domain object or null

getItems

public java.util.Iterator<T> getItems()

Description copied from interface: SuggestedItemInput

get a list of domain objects that are being selected

Specified by:

getItems in interface SuggestedItemInput<V,T>

Returns:

Iterator

getCount

public int getCount()

Description copied from interface: SuggestedItemInput

get the number of suggested items. null selections don't count.

Specified by:

getCount in interface SuggestedItemInput<V,T>

Returns:

int

getTagByItem

public java.lang.String getTagByItem(T item)

Description copied from interface: ListInput

get an identifying tag string from the domain object

Specified by:

getTagByItem in interface ListInput<V,T>

Returns:

String tag

getTagByValue

public java.lang.String getTagByValue(V value)

Description copied from interface: ListInput

get the tag string from the actual value of the input

Specified by:

getTagByValue in interface ListInput<V,T>

Returns:

String tag

convert

public V convert(java.lang.Object v)
          throws TypeError

Description copied from interface: Input

Perform any supported type conversions to to generate a value of the target type

Specified by:

convert in interface Input<V>

Overrides:

convert in class WrappingInput<V>

Parameters:

v - Object input

Returns:

target type

Throws:

TypeError

accept

public <R> R accept(InputVisitor<R> vis)
             throws java.lang.Exception

Specified by:

accept in interface Input<V>

Throws:

java.lang.Exception

getItem

public T getItem()

Description copied from interface: ItemInput

get the domain Object associated with the current value

Specified by:

getItem in interface ItemInput<V,T>

Returns:

Object

setItem

public void setItem(T item)

Description copied from interface: ItemInput

Set the value of the input using an item

Specified by:

setItem in interface ItemInput<V,T>

isValid

public boolean isValid(T item)

Description copied from interface: ListInput

Test if an object of the Item type is one of the possible items.

Specified by:

isValid in interface ListInput<V,T>

Returns:

boolean