com.bea.web.tag
Class AbstractInputTagSupport

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--com.bea.web.tag.AbstractInputTagSupport

Direct Known Subclasses:

CheckBoxTagSupport, DateTagSupport, DoubleTagSupport, EmailTagSupport, FloatTagSupport, IdentifierTagSupport, IntegerTagSupport, PasswordTagSupport, RadioTagSupport, TextareaTagSupport, TextTagSupport, URLTagSupport

public abstract class AbstractInputTagSupport

extends javax.servlet.jsp.tagext.TagSupport

implements java.io.Serializable

An abstract base class for input tags to extend from. The tag classes provided by the Web toolkit generate the HTML for a form field and pre-populate its value with a default, if applicable. In addition, the tag classes display a localized error message next to the form field if the value supplied by the user is invalid. Moreover, instances of this class initialize a com.bea.web.validation.Word object and save it in Web application scope so that the validation object is accessible by the ControllerServlet using the form field’s name. Lastly, this class encapsulates attributes that are common to all input tags:

• name
• default
• required
• attrs

Author:

Copyright © 2000, 2001 BEA Systems, Inc. All Rights Reserved.

See Also:

Serialized Form

Fields inherited from class javax.servlet.jsp.tagext.TagSupport

id, pageContext

Constructor Summary

AbstractInputTagSupport()
Default constructor, all subclasses of javax.servlet.jsp.tagext.TagSupport are required to only define a public constructor with the same signature, and to call the superclass constructor.

Method Summary

java.lang.String	getAttrs()
java.lang.String	getDefault()
int	getMaxlength()
java.lang.String	getName()
int	getSize()
boolean	isRequired()
protected void	printError(javax.servlet.jsp.JspWriter out, java.lang.String strError) Prints an error with HTML markup to the supplied output writer.
void	release() Resets the internal state of this instance for reuse.
void	setAttrs(java.lang.String strAttrs) Sets any HTML Attrs for this input tag
void	setDefault(java.lang.String strDefault) Sets the default value for this input tag
void	setMaxlength(int iLength) Sets the maxlength for this form field.
void	setName(java.lang.String strName) Sets the name of this input tag
void	setRequired(boolean bIsRequired) Sets whether this input field is required for successful processing of the HTML form.
void	setSize(int iSize) Sets the size for this form field.

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

doAfterBody, doEndTag, doStartTag, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractInputTagSupport

public AbstractInputTagSupport()

Default constructor, all subclasses of javax.servlet.jsp.tagext.TagSupport are required to only define a public constructor with the same signature, and to call the superclass constructor.

Method Detail

release

public void release()

Resets the internal state of this instance for reuse. Subclasses should call this method when they are resetting their internal state.

Overrides:

release in class javax.servlet.jsp.tagext.TagSupport

printError

protected void printError(javax.servlet.jsp.JspWriter out,
                          java.lang.String strError)

Prints an error with HTML markup to the supplied output writer.

getDefault

public final java.lang.String getDefault()

Returns:

the default value for this input tag

getAttrs

public final java.lang.String getAttrs()

Returns:

the HTML Attrs for this input tag

getMaxlength

public final int getMaxlength()

Returns:

the maximum length for this input tag

getName

public final java.lang.String getName()

Returns:

the name for this input tag

getSize

public final int getSize()

Returns:

the size for this input tag

isRequired

public final boolean isRequired()

Returns:

true if the user must supply this field, false otherwise

setDefault

public final void setDefault(java.lang.String strDefault)

Sets the default value for this input tag

Parameters:

strDefault - - the default value; if null or "" empty, the value is ignored

setAttrs

public final void setAttrs(java.lang.String strAttrs)

Sets any HTML Attrs for this input tag

Parameters:

strAttrs - - the HTML Attrs; if null or "" empty, the value is ignored

setMaxlength

public final void setMaxlength(int iLength)

Sets the maxlength for this form field.

setName

public final void setName(java.lang.String strName)
                   throws java.lang.IllegalArgumentException

Sets the name of this input tag

Parameters:

strName - - the name; cannot be null or empty ""

Throws:

java.lang.IllegalArgumentException - if strName is null or "" empty

setRequired

public final void setRequired(boolean bIsRequired)

Sets whether this input field is required for successful processing of the HTML form.

setSize

public final void setSize(int iSize)

Sets the size for this form field.