org.progeeks.meta.xml
Class TypeRegistryHandler

java.lang.Object
  org.progeeks.util.xml.AbstractObjectHandler
      org.progeeks.util.xml.BeanObjectHandler
          org.progeeks.meta.xml.TypeRegistryHandler

All Implemented Interfaces:

ObjectHandler

public class TypeRegistryHandler
extends BeanObjectHandler

ObjectHandler implementation for converting XML into a TypeRegistry implementation. Type mappings can be specified as a list property containing the individual mappings. Convenience tag aliases are provided for common property type keys.

If class-based entries are given the default="true" attribute then they will be registered as base or default mappings in the registry.

Version:

$Revision: 1.4 $

Author:

Paul Speed

Nested Class Summary

static class

TypeRegistryHandler.Mapping Represents a single mapping in the registry as read from XML.

Field Summary

static java.lang.String	PROP_MAPPINGS
static java.lang.String	TAG_MAPPING

Fields inherited from class org.progeeks.util.xml.BeanObjectHandler

CONFIG_IMPORT_PACKAGE

Constructor Summary

TypeRegistryHandler()

Method Summary

boolean	canHandle(java.lang.String tag) Returns true if this handler applies to the specified object tag.
java.lang.Object	createObject(java.lang.String tag, org.xml.sax.Attributes atts, ObjectXmlReader reader) Creates and returns an object based on the specified parameters.
java.lang.Class	getPropertyClass(java.lang.Object obj, java.lang.String field, ObjectXmlReader reader) Returns the base type for the specified field.
java.util.Collection	getPropertyCollection(java.lang.Object obj, java.lang.String field, ObjectXmlReader reader) Returns the a collection for the specified field that can be used to accumulate multiple object values.
void	setProperty(java.lang.Object obj, java.lang.String field, java.lang.Object value, ObjectXmlReader reader) Sets a property on the specified object.

Methods inherited from class org.progeeks.util.xml.BeanObjectHandler

getClass, getClass, getConstant, getInnerClass, getPackages, getProperty, getTagClass, ignoreAttribute, importPackage, setConfigurationProperty, setObjectProperties, setPackages, setTextProperty

Methods inherited from class org.progeeks.util.xml.AbstractObjectHandler

resolveObject, setContainedText

Methods inherited from class java.lang.Object

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

Field Detail

TAG_MAPPING

public static final java.lang.String TAG_MAPPING

See Also:

Constant Field Values

PROP_MAPPINGS

public static final java.lang.String PROP_MAPPINGS

See Also:

Constant Field Values

Constructor Detail

TypeRegistryHandler

public TypeRegistryHandler()

Method Detail

canHandle

public boolean canHandle(java.lang.String tag)

Returns true if this handler applies to the specified object tag. This attemps to turn the tag into a bean class and then verifies that the class is a TypeRegistry compatible class.

Specified by:

canHandle in interface ObjectHandler

Overrides:

canHandle in class BeanObjectHandler

setProperty

public void setProperty(java.lang.Object obj,
                        java.lang.String field,
                        java.lang.Object value,
                        ObjectXmlReader reader)

Sets a property on the specified object.

Specified by:

setProperty in interface ObjectHandler

Overrides:

setProperty in class BeanObjectHandler

getPropertyClass

public java.lang.Class getPropertyClass(java.lang.Object obj,
                                        java.lang.String field,
                                        ObjectXmlReader reader)

Returns the base type for the specified field. This is used to determine whether or not to accumulate field values in a collection.

Specified by:

getPropertyClass in interface ObjectHandler

Overrides:

getPropertyClass in class BeanObjectHandler

getPropertyCollection

public java.util.Collection getPropertyCollection(java.lang.Object obj,
                                                  java.lang.String field,
                                                  ObjectXmlReader reader)

Returns the a collection for the specified field that can be used to accumulate multiple object values. This is used when the XML field declaration specifies the progressive attribute.

Specified by:

getPropertyCollection in interface ObjectHandler

Overrides:

getPropertyCollection in class BeanObjectHandler

createObject

public java.lang.Object createObject(java.lang.String tag,
                                     org.xml.sax.Attributes atts,
                                     ObjectXmlReader reader)

Creates and returns an object based on the specified parameters.

Specified by:

createObject in interface ObjectHandler

Overrides:

createObject in class BeanObjectHandler