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, 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

    Constructors
    Constructor and Description
    `AbstractDirective()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `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, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)`
    `abstract String` | `getBeanName()`
    `String` | `getName()`
    `int` | `getType()`
    `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, getScopeName, getTemplateName, init, isScopeProvided, makeScope, postRender, preRender, setLocation, 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()

      Specified by:
        `getType` in class `org.apache.velocity.runtime.directive.Directive`
      Returns:
        All components, unless otherwise stated, are LINE-level directives.

    - #### getBean

          protected abstract Component getBean(ValueStack stack,
                          javax.servlet.http.HttpServletRequest req,
                          javax.servlet.http.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:
        `contextAdapter` - the context adapter
        `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
        `contextAdapter` - the context adapter
        `node` - the parameter to set expressed in "name=value" format
      Throws:
        `org.apache.velocity.exception.ParseErrorException` - in case of parsing errors
        `org.apache.velocity.exception.MethodInvocationException` - in case of method invocation errors

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