org.geotools.sld.bindings
Class SLDParameterValueTypeBinding

Object
  extended by AbstractComplexBinding
      extended by SLDParameterValueTypeBinding
All Implemented Interfaces:
Binding, ComplexBinding

public class SLDParameterValueTypeBinding
extends AbstractComplexBinding

Binding object for the type http://www.opengis.net/sld:ParameterValueType.

         
  <xsd:complexType name="ParameterValueType" mixed="true">
      <xsd:annotation>
          <xsd:documentation>         The "ParameterValueType"
              uses WFS-Filter expressions to give         values for SLD
              graphic parameters.  A "mixed" element-content
              model is used with textual substitution for values.       </xsd:documentation>
      </xsd:annotation>
      <xsd:sequence minOccurs="0" maxOccurs="unbounded">
          <xsd:element ref="ogc:expression"/>
      </xsd:sequence>
  </xsd:complexType>

          
         

Module:
modules/extension/xsd-sld (gt-xsd-sld.jar)

Field Summary
 
Fields inherited from interface Binding
AFTER, BEFORE, OVERRIDE
 
Constructor Summary
SLDParameterValueTypeBinding(FilterFactory filterFactory)
           
 
Method Summary
 int getExecutionMode()
           
 QName getTarget()
           
 Class getType()
           
 void initialize(ElementInstance instance, Node node, MutablePicoContainer context)
           
 Object parse(ElementInstance instance, Node node, Object value)
          Even though the spec allows an instance of ParamterValueType to have multiple expressions as children, it is more often that there is only one.
 
Methods inherited from class AbstractComplexBinding
encode, getProperties, getProperties, getProperty, initializeChildContext
 
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SLDParameterValueTypeBinding

public SLDParameterValueTypeBinding(FilterFactory filterFactory)
Method Detail

getTarget

public QName getTarget()
Returns:
The qualified name of the target for the binding.

getExecutionMode

public int getExecutionMode()

Specified by:
getExecutionMode in interface Binding
Overrides:
getExecutionMode in class AbstractComplexBinding
Returns:
The execution mode of the binding, one of the constants AFTER, BEFORE, or OVERRIDE.
See Also:
Binding.AFTER, Binding.BEFORE, Binding.OVERRIDE

getType

public Class getType()

Returns:
The java type this binding maps to.

initialize

public void initialize(ElementInstance instance,
                       Node node,
                       MutablePicoContainer context)


parse

public Object parse(ElementInstance instance,
                    Node node,
                    Object value)
             throws Exception
Even though the spec allows an instance of ParamterValueType to have multiple expressions as children, it is more often that there is only one. Therefore this binding returns the first expression it finds or null. If a subtype needs multiple expressions they should ovveride.

Specified by:
parse in interface ComplexBinding
Overrides:
parse in class AbstractComplexBinding
Parameters:
instance - The element being parsed.
node - The node in the parse tree representing the element being parsed.
value - The result of the parse from another strategy in the type hierarchy. Could be null if this is the first strategy being executed.
Returns:
The parsed object, or null if the component could not be parsed.
Throws:
Exception - Strategy objects should not attempt to handle any exceptions.


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