org.apache.struts2.views.velocity.components
Class AbstractDirective

java.lang.Object
  org.apache.velocity.runtime.directive.Directive
      org.apache.struts2.views.velocity.components.AbstractDirective

All Implemented Interfaces:

Cloneable, org.apache.velocity.runtime.directive.DirectiveConstants

Direct Known Subclasses:

ActionDirective, ActionErrorDirective, ActionMessageDirective, AnchorDirective, BeanDirective, CheckBoxDirective, CheckBoxListDirective, ComboBoxDirective, ComponentDirective, DateDirective, DivDirective, DoubleSelectDirective, FieldErrorDirective, FileDirective, FormDirective, HeadDirective, HiddenDirective, I18nDirective, IncludeDirective, InputTransferSelectDirective, LabelDirective, OptGroupDirective, OptionTransferSelectDirective, ParamDirective, PasswordDirective, PropertyDirective, PushDirective, RadioDirective, ResetDirective, SelectDirective, SetDirective, SubmitDirective, TextAreaDirective, TextDirective, TextFieldDirective, TokenDirective, UpDownSelectDirective, URLDirective

public abstract class AbstractDirective
extends org.apache.velocity.runtime.directive.Directive

Field Summary

Fields inherited from class org.apache.velocity.runtime.directive.Directive

rsvc

Fields inherited from interface org.apache.velocity.runtime.directive.DirectiveConstants

BLOCK, LINE

Constructor Summary

AbstractDirective()

Method Summary

protected Map	createPropertyMap(org.apache.velocity.context.InternalContextAdapter contextAdapter, org.apache.velocity.runtime.parser.node.Node node) create a Map of properties that the user has passed in.
protected abstract Component	getBean(ValueStack stack, HttpServletRequest req, HttpServletResponse res)
abstract String	getBeanName()
String	getName()
int	getType() All components, unless otherwise stated, are LINE-level directives.
protected void	putProperty(Map propertyMap, org.apache.velocity.context.InternalContextAdapter contextAdapter, org.apache.velocity.runtime.parser.node.Node node) adds a given Node's key/value pair to the propertyMap.
boolean	render(org.apache.velocity.context.InternalContextAdapter ctx, Writer writer, org.apache.velocity.runtime.parser.node.Node node)

Methods inherited from class org.apache.velocity.runtime.directive.Directive

getColumn, getLine, init, setLocation

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDirective

public AbstractDirective()

Method Detail

getName

public String getName()

Specified by:

getName in class org.apache.velocity.runtime.directive.Directive

getBeanName

public abstract String getBeanName()

getType

public int getType()

All components, unless otherwise stated, are LINE-level directives.

Specified by:

getType in class org.apache.velocity.runtime.directive.Directive

getBean

protected abstract Component getBean(ValueStack stack,
                                     HttpServletRequest req,
                                     HttpServletResponse res)

render

public boolean render(org.apache.velocity.context.InternalContextAdapter ctx,
                      Writer writer,
                      org.apache.velocity.runtime.parser.node.Node node)
               throws IOException,
                      org.apache.velocity.exception.ResourceNotFoundException,
                      org.apache.velocity.exception.ParseErrorException,
                      org.apache.velocity.exception.MethodInvocationException

Specified by:

render in class org.apache.velocity.runtime.directive.Directive

Throws:

IOException

org.apache.velocity.exception.ResourceNotFoundException

org.apache.velocity.exception.ParseErrorException

org.apache.velocity.exception.MethodInvocationException

createPropertyMap

protected Map createPropertyMap(org.apache.velocity.context.InternalContextAdapter contextAdapter,
                                org.apache.velocity.runtime.parser.node.Node node)
                         throws org.apache.velocity.exception.ParseErrorException,
                                org.apache.velocity.exception.MethodInvocationException

create a Map of properties that the user has passed in. for example,

 #xxx("name=hello" "value=world" "template=foo")
 

would yield a params that contains {["name", "hello"], ["value", "world"], ["template", "foo"]}

Parameters:

node - the Node passed in to the render method

Returns:

a Map of the user specified properties

Throws:

org.apache.velocity.exception.ParseErrorException - if the was an error in the format of the property

org.apache.velocity.exception.MethodInvocationException

putProperty

protected void putProperty(Map propertyMap,
                           org.apache.velocity.context.InternalContextAdapter contextAdapter,
                           org.apache.velocity.runtime.parser.node.Node node)
                    throws org.apache.velocity.exception.ParseErrorException,
                           org.apache.velocity.exception.MethodInvocationException

adds a given Node's key/value pair to the propertyMap. For example, if this Node contained the value "rows=20", then the key, rows, would be added to the propertyMap with the String value, 20.

Parameters:

propertyMap - a params containing all the properties that we wish to set

node - the parameter to set expressed in "name=value" format

Throws:

org.apache.velocity.exception.ParseErrorException

org.apache.velocity.exception.MethodInvocationException