org.progeeks.graph.xml
Class StandardPredicateHandler

java.lang.Object
  org.progeeks.util.xml.AbstractObjectHandler
      org.progeeks.util.xml.BeanObjectHandler
          org.progeeks.util.xml.DefaultObjectHandler
              org.progeeks.graph.xml.StandardPredicateHandler

All Implemented Interfaces:

ObjectHandler

public class StandardPredicateHandler
extends DefaultObjectHandler

An XML object handler that can read the standard predicate forms created by the different predicate factories in plexus or some predicates that require full information for instantiation such as the AnyPredicate, AllPredicate, etc..

Version:

$Revision: 1.10 $

Author:

Paul Speed

Nested Class Summary

static class	StandardPredicateHandler.AllPredicateBean
static class	StandardPredicateHandler.AnyPredicateBean
static class	StandardPredicateHandler.EdgePredicateBean
static class	StandardPredicateHandler.EqualPredicateBean
static class	StandardPredicateHandler.NotPredicateBean
static interface	StandardPredicateHandler.PredicateBean
static class	StandardPredicateHandler.TraverserPredicateBean

Field Summary

static java.lang.String	ALL_PREDICATE
static java.lang.String	ANY_PREDICATE
static java.lang.String	EDGE_PREDICATE
static java.lang.String	EQUAL_PREDICATE
static java.lang.String	FALSE_PREDICATE
static java.lang.String	NOT_PREDICATE
static java.lang.String	TRAVERSER_PREDICATE
static java.lang.String	TRUE_PREDICATE

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

CONFIG_IMPORT_PACKAGE

Constructor Summary

StandardPredicateHandler()

Method Summary

boolean	canHandle(java.lang.String tag) We only handle a few specific tags.
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.Object	resolveObject(java.lang.String tag, java.lang.Object obj, ObjectXmlReader reader) Uses the internal predicate representation to call the predicate factory methods.

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

addHandledClass, getHandledClasses

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

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

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

setContainedText

Methods inherited from class java.lang.Object

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

Field Detail

EDGE_PREDICATE

public static final java.lang.String EDGE_PREDICATE

See Also:

Constant Field Values

TRAVERSER_PREDICATE

public static final java.lang.String TRAVERSER_PREDICATE

See Also:

Constant Field Values

ANY_PREDICATE

public static final java.lang.String ANY_PREDICATE

See Also:

Constant Field Values

ALL_PREDICATE

public static final java.lang.String ALL_PREDICATE

See Also:

Constant Field Values

EQUAL_PREDICATE

public static final java.lang.String EQUAL_PREDICATE

See Also:

Constant Field Values

NOT_PREDICATE

public static final java.lang.String NOT_PREDICATE

See Also:

Constant Field Values

TRUE_PREDICATE

public static final java.lang.String TRUE_PREDICATE

See Also:

Constant Field Values

FALSE_PREDICATE

public static final java.lang.String FALSE_PREDICATE

See Also:

Constant Field Values

Constructor Detail

StandardPredicateHandler

public StandardPredicateHandler()

Method Detail

canHandle

public boolean canHandle(java.lang.String tag)

We only handle a few specific tags.

Specified by:

canHandle in interface ObjectHandler

Overrides:

canHandle in class DefaultObjectHandler

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

resolveObject

public java.lang.Object resolveObject(java.lang.String tag,
                                      java.lang.Object obj,
                                      ObjectXmlReader reader)

Uses the internal predicate representation to call the predicate factory methods.

Specified by:

resolveObject in interface ObjectHandler

Overrides:

resolveObject in class AbstractObjectHandler