org.rhq.enterprise.gui.legacy.taglib.display
Class ColumnTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.servlet.jsp.tagext.BodyTagSupport
          org.rhq.enterprise.gui.legacy.taglib.display.ColumnTag

All Implemented Interfaces:

Serializable, Cloneable, javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag

Direct Known Subclasses:

LocalizedColumnTag

public class ColumnTag
extends javax.servlet.jsp.tagext.BodyTagSupport
implements Cloneable

This tag works hand in hand with the SmartListTag to display a list of objects. This describes a column of data in the SmartListTag. There can be any (reasonable) number of columns that make up the list.

This tag does no work itself, it is simply a container of information. The TableTag does all the work based on the information provided in the attributes of this tag.

Usage:

Attributes:

property - the property method that is called to retrieve the information to be displayed in this column. This method is called on the current object in the iteration for the given row. The property format is in typical struts format for properties (required) showHideProperty - the property that is called to retrieve the information to be displayed as a hidden layer. The data in this property will be displayed beneath the data specified in the property field when the show/hide buttons are manipulated. title - the title displayed for this column. if this is omitted then the property name is used for the title of the column (optional) nulls - by default, null values don't appear in the list, by setting viewNulls to 'true', then null values will appear as "null" in the list (mostly useful for debugging) (optional) width - the width of the column (gets passed along to the html td tag). (optional) group - the grouping level (starting at 1 and incrementing) of this column (indicates if successive contain the same values, then they should not be displayed). The level indicates that if a lower level no longer matches, then the matching for this higher level should start over as well. If this attribute is not included, then no grouping is performed. (optional) decorator - a class that should be used to "decorate" the underlying object being displayed. If a decorator is specified for the entire table, then this decorator will decorate that decorator. (optional) autolink - if set to true, then any email addresses and URLs found in the content of the column are automatically converted into a hypertext link. href - if this attribute is provided, then the data that is shown for this column is wrapped inside a tag with the url provided through this attribute. Typically you would use this attribute along with one of the struts-like param attributes below to create a dynamic link so that each row creates a different URL based on the data that is being viewed. (optional) paramId - The name of the request parameter that will be dynamically added to the generated href URL. The corresponding value is defined by the paramProperty and (optional) paramName attributes, optionally scoped by the paramScope attribute. (optional) paramName - The name of a JSP bean that is a String containing the value for the request parameter named by paramId (if paramProperty is not specified), or a JSP bean whose property getter is called to return a String (if paramProperty is specified). The JSP bean is constrained to the bean scope specified by the paramScope property, if it is specified. If paramName is omitted, then it is assumed that the current object being iterated on is the target bean. (optional) paramProperty - The name of a property of the bean specified by the paramName attribute (or the current object being iterated on if paramName is not provided), whose return value must be a String containing the value of the request parameter (named by the paramId attribute) that will be dynamically added to this href URL. (optional) paramScope - The scope within which to search for the bean specified by the paramName attribute. If not specified, all scopes are searched. If paramName is not provided, then the current object being iterated on is assumed to be the target bean. (optional) maxLength - If this attribute is provided, then the column's displayed is limited to this number of characters. An elipse (...) is appended to the end if this column is linked, and the user can mouseover the elipse to get the full text. (optional) maxWords - If this attribute is provided, then the column's displayed is limited to this number of words. An elipse (...) is appended to the end if this column is linked, and the user can mouseover the elipse to get the full text. (optional)

See Also:

Serialized Form

Field Summary

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

bodyContent

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

id, pageContext

Fields inherited from interface javax.servlet.jsp.tagext.BodyTag

EVAL_BODY_BUFFERED, EVAL_BODY_TAG

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface javax.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

ColumnTag()

Method Summary

int	doEndTag() Passes attribute information up to the parent TableTag.
int	doStartTag()
String	getAlign()
String	getAutolink()
String	getBackground()
String	getBgcolor()
protected String	getCellAttributes() Takes all the column pass-through arguments and bundles them up as a string that gets tacked on to the end of the td tag declaration.
ColumnDecorator	getDecorator()
String	getDecoratorClass()
String	getDoubleQuote()
String	getGroup()
String	getHeaderStyleClass()
String	getHeight()
String	getHref()
boolean	getIsShowHideColumn()
int	getMaxLength()
int	getMaxWords()
String	getNowrap()
String	getNulls()
String	getOnClick()
String	getParamId()
String	getParamName()
String	getParamProperty()
String	getParamScope()
String	getProperty()
String	getShowHideProperty()
String	getSort()
String	getStyleClass()
String	getTitle()
String	getValign()
Object	getValue()
String	getWidth()
void	release() called by the jsp framework to release state.
String	replacePropertyIfPossible(String input, javax.servlet.jsp.PageContext pageContext)
void	setAlign(String v)
void	setAutolink(String v)
void	setBackground(String v)
void	setBgcolor(String v)
void	setDecorator(ColumnDecorator v)
void	setDecoratorClass(String decoratorClass)
void	setDoubleQuote(String v)
void	setGroup(String v)
void	setHeaderStyleClass(String v)
void	setHeight(String v)
void	setHref(String v)
void	setIsShowHideColumn(boolean v)
void	setMaxLength(int v)
void	setMaxWords(int v)
void	setNowrap(String v)
void	setNulls(String v)
void	setOnClick(String onClick)
void	setParamId(String v)
void	setParamName(String v)
void	setParamProperty(String v)
void	setParamScope(String v)
void	setProperty(String v)
void	setShowHideProperty(String v)
void	setSort(String v)
void	setStyleClass(String v)
void	setTitle(String v)
void	setValign(String v)
void	setValue(Object v)
void	setWidth(String v)
String	toString() Returns a String representation of this Tag that is suitable for printing while debugging.

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

doAfterBody, doInitBody, getBodyContent, getPreviousOut, setBodyContent

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

findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.servlet.jsp.tagext.Tag

getParent, setPageContext, setParent

Constructor Detail

ColumnTag

public ColumnTag()

Method Detail

setProperty

public void setProperty(String v)

getOnClick

public String getOnClick()

setOnClick

public void setOnClick(String onClick)

setShowHideProperty

public void setShowHideProperty(String v)

setTitle

public void setTitle(String v)

setNulls

public void setNulls(String v)

setSort

public void setSort(String v)

setAutolink

public void setAutolink(String v)

setGroup

public void setGroup(String v)

setIsShowHideColumn

public void setIsShowHideColumn(boolean v)

setHref

public void setHref(String v)

setParamId

public void setParamId(String v)

setParamName

public void setParamName(String v)

setParamProperty

public void setParamProperty(String v)

setParamScope

public void setParamScope(String v)

setMaxLength

public void setMaxLength(int v)

setMaxWords

public void setMaxWords(int v)

setWidth

public void setWidth(String v)

setAlign

public void setAlign(String v)

setBackground

public void setBackground(String v)

setBgcolor

public void setBgcolor(String v)

setHeight

public void setHeight(String v)

setNowrap

public void setNowrap(String v)

setValign

public void setValign(String v)

setStyleClass

public void setStyleClass(String v)

setHeaderStyleClass

public void setHeaderStyleClass(String v)

setValue

public void setValue(Object v)

setDoubleQuote

public void setDoubleQuote(String v)

setDecorator

public void setDecorator(ColumnDecorator v)

getProperty

public String getProperty()

getShowHideProperty

public String getShowHideProperty()

getTitle

public String getTitle()

getNulls

public String getNulls()

getSort

public String getSort()

getAutolink

public String getAutolink()

getGroup

public String getGroup()

getIsShowHideColumn

public boolean getIsShowHideColumn()

getHref

public String getHref()

getParamId

public String getParamId()

getParamName

public String getParamName()

getParamProperty

public String getParamProperty()

getParamScope

public String getParamScope()

getMaxLength

public int getMaxLength()

getMaxWords

public int getMaxWords()

getWidth

public String getWidth()

getAlign

public String getAlign()

getBackground

public String getBackground()

getBgcolor

public String getBgcolor()

getHeight

public String getHeight()

getNowrap

public String getNowrap()

getValign

public String getValign()

getStyleClass

public String getStyleClass()

getHeaderStyleClass

public String getHeaderStyleClass()

getValue

public Object getValue()

getDoubleQuote

public String getDoubleQuote()

getDecorator

public ColumnDecorator getDecorator()

getDecoratorClass

public String getDecoratorClass()

setDecoratorClass

public void setDecoratorClass(String decoratorClass)
                       throws javax.servlet.jsp.JspException

Throws:

javax.servlet.jsp.JspException

doEndTag

public int doEndTag()
             throws javax.servlet.jsp.JspException

Passes attribute information up to the parent TableTag.

When we hit the end of the tag, we simply let our parent (which better be a TableTag) know what the user wants to do with this column. We do that by simple registering this tag with the parent. This tag's only job is to hold the configuration information to describe this particular column. The TableTag does all the work.

Specified by:

doEndTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doEndTag in class javax.servlet.jsp.tagext.BodyTagSupport

Throws:

javax.servlet.jsp.JspException - if this tag is being used outside of a tag.

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspException

Specified by:

doStartTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class javax.servlet.jsp.tagext.BodyTagSupport

Throws:

javax.servlet.jsp.JspException

release

public void release()

called by the jsp framework to release state.

Specified by:

release in interface javax.servlet.jsp.tagext.Tag

Overrides:

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

getCellAttributes

protected String getCellAttributes()
                            throws javax.servlet.jsp.JspException

Takes all the column pass-through arguments and bundles them up as a string that gets tacked on to the end of the td tag declaration.

Returns:

the td tag attributes

Throws:

javax.servlet.jsp.JspException

replacePropertyIfPossible

public String replacePropertyIfPossible(String input,
                                        javax.servlet.jsp.PageContext pageContext)

toString

public String toString()

Returns a String representation of this Tag that is suitable for printing while debugging. Where the placeholders in brackets are replaced with their appropriate instance variables

Overrides:

toString in class Object