Bug 205049 Other plug-ins should be able to define default content generator
Currently only the content generator can define which plug-ins it can be the default for - we need a way for plug-ins to refer back to the marker support for thier own generator.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/provisional/views/markers/api/MarkerField.java
return getValue(new MarkerEntry(marker));
	}
	/**
	 * Get the severity of the element.
	 * 
	 * @param element
	 * @return int
	 */
	public int getSeverity(MarkerItem element) {
		if (element.isConcrete())
			return element.getAttributeValue(IMarker.SEVERITY, -1);
		return 0;
	}
	/**
	 * @param item
	 * @return The String value of the object for this particular field to be
	 *         displayed to the user.
	 */
	public abstract String getValue(MarkerItem item);
	/**
	 * Set the configuration element used by the receiver.
	 * 
	 * @param element
	 */
	public void setConfigurationElement(IConfigurationElement element) {
		configurationElement = element;
	}
	
}