org.vast.ogc.xlink

Class CachedReference<TargetType>

java.lang.Object

org.vast.ogc.xlink.CachedReference<TargetType>

Type Parameters:

TargetType - Type of the link target object

All Implemented Interfaces:

IXlinkReference<TargetType>

Direct Known Subclasses:

DefinitionRef, FeatureRef

public class CachedReference<TargetType>
extends Object
implements IXlinkReference<TargetType>

Implementation of Xlink Reference that keeps a cached version of the target. Object is cached on the first call to getTarget(). Reloading the target object can be enforced by calling refresh().

Since:

Sep 28, 2012

Author:

Alex Robin

Field Summary

Fields

Modifier and Type	Field and Description
protected String	arcRole
protected String	href
protected IReferenceResolver<TargetType>	resolver
protected String	role
protected TargetType	value

Constructor Summary

Constructors

Constructor and Description
CachedReference()
CachedReference(IReferenceResolver<TargetType> resolver)
CachedReference(String href)
CachedReference(String href, IReferenceResolver<TargetType> resolver)

Method Summary

Methods

Modifier and Type	Method and Description
protected TargetType	fetchTarget(String href)
String	getArcRole()
String	getHref()
String	getRole()
TargetType	getTarget()
void	refresh()
void	setArcRole(String arcRole)
void	setHref(String href)
void	setResolver(IReferenceResolver<TargetType> resolver)
void	setRole(String role)

Methods inherited from class java.lang.Object

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

Field Detail

href

protected String href

role

protected String role

arcRole

protected String arcRole

value

protected TargetType value

resolver

protected IReferenceResolver<TargetType> resolver

Constructor Detail

CachedReference

public CachedReference()

CachedReference

public CachedReference(String href)

CachedReference

public CachedReference(IReferenceResolver<TargetType> resolver)

CachedReference

public CachedReference(String href,
               IReferenceResolver<TargetType> resolver)

Method Detail

getHref

public String getHref()

Specified by:

getHref in interface IXlinkReference<TargetType>

setHref

public void setHref(String href)

Specified by:

setHref in interface IXlinkReference<TargetType>

getRole

public String getRole()

Specified by:

getRole in interface IXlinkReference<TargetType>

setRole

public void setRole(String role)

Specified by:

setRole in interface IXlinkReference<TargetType>

getArcRole

public String getArcRole()

Specified by:

getArcRole in interface IXlinkReference<TargetType>

setArcRole

public void setArcRole(String arcRole)

Specified by:

setArcRole in interface IXlinkReference<TargetType>

getTarget

public TargetType getTarget()

Specified by:

getTarget in interface IXlinkReference<TargetType>

setResolver

public void setResolver(IReferenceResolver<TargetType> resolver)

refresh

public void refresh()
             throws IOException

Throws:

IOException

fetchTarget

protected TargetType fetchTarget(String href)
                          throws IOException

Throws:

IOException