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

java.lang.Object
  org.rhq.enterprise.gui.legacy.taglib.display.Decorator
      org.rhq.enterprise.gui.legacy.taglib.display.ColumnDecorator
          org.rhq.enterprise.gui.legacy.taglib.display.BaseDecorator

All Implemented Interfaces:

Cloneable, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag

Direct Known Subclasses:

AlternateDecorator, BooleanDecorator, DateDecorator, DisambiguatedResourceLineageDecorator, DisambiguatedResourceNameDecorator, EqualsDecorator, GroupMetricsDecorator, HtmlDecorator, ImageDecorator, ImageLinkDecorator, MeasurementDataTypeDecorator, PathDecorator, PriorityDecorator, SelectDecorator

public abstract class BaseDecorator
extends ColumnDecorator
implements javax.servlet.jsp.tagext.Tag

This class is an abstract class for decorators to inherit from for implementing decorators for columns.

Field Summary

Fields inherited from class org.rhq.enterprise.gui.legacy.taglib.display.ColumnDecorator

columnTag

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

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

BaseDecorator()

Method Summary

abstract String	decorate(Object obj) The main method to override here.
int	doEndTag()
int	doStartTag()
protected Object	evalAttr(String name, String value, Class type)
protected String	generateErrorComment(String exc, String attrName, String attrValue, Throwable t)
String	getName()
javax.servlet.jsp.tagext.Tag	getParent()
void	release()
void	setName(String n)
void	setParent(javax.servlet.jsp.tagext.Tag t)

Methods inherited from class org.rhq.enterprise.gui.legacy.taglib.display.ColumnDecorator

getColumnTag, setColumnTag

Methods inherited from class org.rhq.enterprise.gui.legacy.taglib.display.Decorator

finish, finishRow, getList, getListIndex, getObject, getPageContext, getViewIndex, init, initRow, setPageContext

Methods inherited from class java.lang.Object

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

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

setPageContext

Constructor Detail

BaseDecorator

public BaseDecorator()

Method Detail

decorate

public abstract String decorate(Object obj)

The main method to override here. This should look something like this: String name = null; try { name = (String) evalAttr("name", this.name, String.class); } catch (NullAttributeException ne) { log.debug("bean " + this.name + " not found"); return ""; } catch (JspException je) { log.debug("can't evaluate name [" + this.name + "]: ", je); return ""; } StringBuffer buf = new StringBuffer(1024); buf.append(" "); buf.append(obj.toString()); buf.append(""); return buf.toString()

Specified by:

decorate in class ColumnDecorator

doStartTag

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

Specified by:

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

Throws:

javax.servlet.jsp.JspTagException

doEndTag

public int doEndTag()

Specified by:

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

getName

public String getName()

setName

public void setName(String n)

getParent

public javax.servlet.jsp.tagext.Tag getParent()

Specified by:

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

setParent

public void setParent(javax.servlet.jsp.tagext.Tag t)

Specified by:

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

release

public void release()

Specified by:

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

Overrides:

release in class Decorator

evalAttr

protected Object evalAttr(String name,
                          String value,
                          Class type)
                   throws javax.servlet.jsp.JspException,
                          org.apache.taglibs.standard.tag.common.core.NullAttributeException

Throws:

javax.servlet.jsp.JspException

org.apache.taglibs.standard.tag.common.core.NullAttributeException

generateErrorComment

protected String generateErrorComment(String exc,
                                      String attrName,
                                      String attrValue,
                                      Throwable t)