net.sf.click.control
Class TextField

java.lang.Object
  net.sf.click.control.AbstractControl
      net.sf.click.control.Field
          net.sf.click.control.TextField

All Implemented Interfaces:

Control, Serializable

Direct Known Subclasses:

PasswordField

public class TextField

extends Field

Provides a Text Field control: <input type='text'>.

Text Field

TextField Example

The example below shows how to a TextField to a Form, and how it will be rendered as HTML.

 TextField usernameField = new TextField("username");
 usernameField.setRequired(true);
 usernameField.setSize(12);
 usernameField.setMaxLength(12);
 usernameField.setMinLength(6);
 form.add(usernameField); 

The TextField control will rendered HTML output:

 <input type='text' name='username' value='' size='12' maxlength='12'> 

For another example using TextField see the Form Javadoc example.

See also the W3C HTML reference: INPUT

Author:

Malcolm Edgar

See Also:

Serialized Form

Field Summary

protected int	maxLength The maximum field length validation constraint.
protected int	minLength The minimum field length validation constraint.
protected int	size The text field size attribute.
protected static String	VALIDATE_TEXTFIELD_FUNCTION The field validation JavaScript function template.

Fields inherited from class net.sf.click.control.Field

disabled, error, focus, form, help, label, readonly, required, tabindex, title, validate, value

Fields inherited from class net.sf.click.control.AbstractControl

actionListener, attributes, listener, listenerMethod, messages, name, parent, styles

Fields inherited from interface net.sf.click.Control

CONTROL_MESSAGES

Constructor Summary

TextField()
Create a TextField with no name defined.

TextField(String name)
Construct the TextField with the given name.

TextField(String name, boolean required)
Construct the TextField with the given name and required status.

TextField(String name, String label)
Construct the TextField with the given name and label.

TextField(String name, String label, boolean required)
Construct the TextField with the given name, label and required status.

TextField(String name, String label, int size)
Construct the TextField with the given name, label and size.

TextField(String name, String label, int size, boolean required)
Construct the TextField with the given name, label, size and required status.

Method Summary

int	getControlSizeEst() Return the estimated rendered control size in characters.
int	getMaxLength() Returns the maximum field length validation constraint.
int	getMinLength() Returns the minimum field length validation constraint.
int	getSize() Return the field size.
String	getTag() Return the textfield's html tag: input.
String	getType() Return the input type: 'text'.
String	getValidationJavaScript() Return the field JavaScript client side validation function.
void	render(HtmlStringBuffer buffer) Render the HTML representation of the TextField.
void	setMaxLength(int maxLength) Sets the maximum field length.
void	setMinLength(int minLength) Sets the minimum field length validation constraint.
void	setSize(int size) Set the field size.
void	validate() Validate the TextField request submission.

Methods inherited from class net.sf.click.control.Field

bindRequestValue, getError, getErrorLabel, getFocus, getFocusJavaScript, getForm, getHelp, getId, getLabel, getRequestValue, getTabIndex, getTextAlign, getTitle, getValidate, getValue, getValueObject, getWidth, isDisabled, isHidden, isReadonly, isRequired, isValid, onInit, onProcess, setDisabled, setError, setErrorMessage, setErrorMessage, setErrorMessage, setErrorMessage, setFocus, setForm, setHelp, setLabel, setListener, setParent, setReadonly, setRequired, setTabIndex, setTextAlign, setTitle, setValidate, setValue, setValueObject, setWidth

Methods inherited from class net.sf.click.control.AbstractControl

addStyleClass, appendAttributes, getActionListener, getAttribute, getAttributes, getContext, getHtmlImports, getMessage, getMessage, getMessage, getMessages, getName, getPage, getParent, getStyle, getStyles, hasAttribute, hasAttributes, hasStyles, onDeploy, onDestroy, onRender, registerActionEvent, removeStyleClass, renderTagBegin, renderTagEnd, setActionListener, setAttribute, setId, setName, setStyle, toString

Methods inherited from class java.lang.Object

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

Field Detail

VALIDATE_TEXTFIELD_FUNCTION

protected static final String VALIDATE_TEXTFIELD_FUNCTION

The field validation JavaScript function template. The function template arguments are:

• 0 - is the field id
• 1 - is the Field required status
• 2 - is the minimum length
• 3 - is the maximum length
• 4 - is the localized error message for required validation
• 5 - is the localized error message for minimum length validation
• 6 - is the localized error message for maximum length validation

See Also:

Constant Field Values

maxLength

protected int maxLength

The maximum field length validation constraint. If the value is zero this validation constraint is not applied. The default value is zero.

If maxLenth is greater than zero, then maxLength is rendered as the HTML attribute 'maxlength'.

minLength

protected int minLength

The minimum field length validation constraint. If the valid is zero this validation constraint is not applied. The default value is zero.

size

protected int size

The text field size attribute. The default size is 20.

Constructor Detail

TextField

public TextField(String name)

Construct the TextField with the given name. The default text field size is 20 characters.

Parameters:

name - the name of the field

TextField

public TextField(String name,
                 boolean required)

Construct the TextField with the given name and required status. The default text field size is 20 characters.

Parameters:

name - the name of the field

required - the field required status

TextField

public TextField(String name,
                 String label)

Construct the TextField with the given name and label. The default text field size is 20 characters.

Parameters:

name - the name of the field

label - the label of the field

TextField

public TextField(String name,
                 String label,
                 boolean required)

Construct the TextField with the given name, label and required status. The default text field size is 20 characters.

Parameters:

name - the name of the field

label - the label of the field

required - the field required status

TextField

public TextField(String name,
                 String label,
                 int size)

Construct the TextField with the given name, label and size.

Parameters:

name - the name of the field

label - the label of the field

size - the size of the field

TextField

public TextField(String name,
                 String label,
                 int size,
                 boolean required)

Construct the TextField with the given name, label, size and required status.

Parameters:

name - the name of the field

label - the label of the field

size - the size of the field

required - the field required status

TextField

public TextField()

Create a TextField with no name defined.

Please note the control's name must be defined before it is valid.

Method Detail

getTag

public String getTag()

Return the textfield's html tag: input.

Overrides:

getTag in class AbstractControl

Returns:

this controls html tag

See Also:

AbstractControl.getTag()

getMaxLength

public int getMaxLength()

Returns the maximum field length validation constraint. If the maxLength property is greater than zero, the Field values length will be validated against this constraint when processed.

If maxLenth is greater than zero, it is rendered as the field attribute 'maxlength'

Returns:

the maximum field length validation constraint

setMaxLength

public void setMaxLength(int maxLength)

Sets the maximum field length. If the maxLength property is greater than zero, the Field values length will be validated against this constraint when processed.

If maxLenth is greater than zero, it is rendered as the field attribute 'maxlength'

Parameters:

maxLength - the maximum field length validation constraint

getMinLength

public int getMinLength()

Returns the minimum field length validation constraint. If the minLength property is greater than zero, the Field values length will be validated against this constraint when processed.

Returns:

the minimum field length validation constraint

setMinLength

public void setMinLength(int minLength)

Sets the minimum field length validation constraint. If the minLength property is greater than zero, the Field values length will be validated against this constraint when processed.

Parameters:

minLength - the minimum field length validation constraint

getSize

public int getSize()

Return the field size.

Returns:

the field size

setSize

public void setSize(int size)

Set the field size.

Parameters:

size - the field size

getType

public String getType()

Return the input type: 'text'.

Returns:

the input type: 'text'

getControlSizeEst

public int getControlSizeEst()

Description copied from class: AbstractControl

Return the estimated rendered control size in characters.

Overrides:

getControlSizeEst in class AbstractControl

Returns:

the estimated rendered control size in characters

See Also:

AbstractControl.getControlSizeEst()

render

public void render(HtmlStringBuffer buffer)

Render the HTML representation of the TextField.

Specified by:

render in interface Control

Overrides:

render in class AbstractControl

Parameters:

buffer - the specified buffer to render the control's output to

See Also:

AbstractControl.toString()

validate

public void validate()

Validate the TextField request submission.

A field error message is displayed if a validation error occurs. These messages are defined in the resource bundle:

net.sf.click.control.MessageProperties

Error message bundle key names include:

• field-maxlength-error
• field-minlength-error
• field-required-error

Overrides:

validate in class Field

getValidationJavaScript

public String getValidationJavaScript()

Return the field JavaScript client side validation function.

The function name must follow the format validate_[id], where the id is the DOM element id of the fields focusable HTML element, to ensure the function has a unique name.

Overrides:

getValidationJavaScript in class Field

Returns:

the field JavaScript client side validation function