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

Class BaseInput<V>

java.lang.Object

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

Type Parameters:

V -

All Implemented Interfaces:

Input<V>

Direct Known Subclasses:

AbstractInput, CodeListInput, MultiInput, RepositoryFieldInput, RepositoryForeignKeyInput

public abstract class BaseInput<V>
extends java.lang.Object
implements Input<V>

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Set<FieldValidator<V>>	validators

Constructor Summary

Constructors

Constructor and Description
BaseInput()

Method Summary

Modifier and Type	Method and Description
void	addValidator(FieldValidator<V> val) Add a FieldValidator to this input
V	convert(java.lang.Object v) Perform any supported type conversions to to generate a value of the target type
java.lang.String	getKey() get the unique key for this selector
java.lang.String	getPrettyString(V val) Convert a value into a user friendly string.
java.lang.String	getString() get a String representation of the value in a form that is compatible with the way the input is parsed.
java.lang.String	getString(V val) get a String representation of an Object that is compatible with the way the input is parsed
void	removeValidator(FieldValidator<V> val) Remove a FieldValidator from this input
void	setKey(java.lang.String key) Set the key used by this Selector
void	validate() Check the validity of the current state of the Object.
protected void	validateInner() Extension point to add validation to sub-class specific inner-state

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.Input

accept, getValue, isEmpty, setValue

Field Detail

validators

protected java.util.Set<FieldValidator<V>> validators

Constructor Detail

BaseInput

public BaseInput()

Method Detail

addValidator

public final void addValidator(FieldValidator<V> val)

Description copied from interface: Input

Add a FieldValidator to this input

Specified by:

addValidator in interface Input<V>

removeValidator

public final void removeValidator(FieldValidator<V> val)

Description copied from interface: Input

Remove a FieldValidator from this input

Specified by:

removeValidator in interface Input<V>

getKey

public final java.lang.String getKey()

Description copied from interface: Input

get the unique key for this selector

Specified by:

getKey in interface Input<V>

Returns:

Object key for this Selector

setKey

public void setKey(java.lang.String key)

Description copied from interface: Input

Set the key used by this Selector

Specified by:

setKey in interface Input<V>

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>

Parameters:

v - Object input

Returns:

target type

Throws:

TypeError

getString

public final java.lang.String getString()

get a String representation of the value in a form that is compatible with the way the input is parsed. This provides a default implementation of a method requires by ParseInput

Returns:

String or null if no value

getString

public java.lang.String getString(V val)

get a String representation of an Object that is compatible with the way the input is parsed

Specified by:

getString in interface Input<V>

Parameters:

val -

Returns:

String or null if val is null

See Also:

ParseInput

getPrettyString

public java.lang.String getPrettyString(V val)

Description copied from interface: Input

Convert a value into a user friendly string. This usually defaults to the same as getString but can be overridden to produce nicer output

Specified by:

getPrettyString in interface Input<V>

Returns:

String

See Also:

ListInput

validate

public final void validate()
                    throws FieldException

Description copied from interface: Input

Check the validity of the current state of the Object.

Specified by:

validate in interface Input<V>

Throws:

FieldException

validateInner

protected void validateInner()
                      throws FieldException

Extension point to add validation to sub-class specific inner-state

Throws:

FieldException