Package ch.tocco.nice2.templating.api.freemarker.templatemodel

Class NullableTemplateModel

java.lang.Object

ch.tocco.nice2.templating.api.freemarker.templatemodel.NullableTemplateModel

All Implemented Interfaces:

freemarker.template.TemplateHashModel, freemarker.template.TemplateModel

Direct Known Subclasses:

BooleanTemplateModel, NumericTemplateModel, StringTemplateModel

public abstract class NullableTemplateModel
extends Object
implements freemarker.template.TemplateHashModel

Base class for values which may be null. In case of the value is null, a fallback value is provided (which can also be null, but seldom is). Keep the public interface synced with NullableBean.

See Also:

• NullableBean

Field Summary

Fields

Modifier and Type	Field	Description
protected final Object	nullValue
protected final Object	value
protected final freemarker.ext.beans.BeansWrapper	wrapper

Fields inherited from interface freemarker.template.TemplateModel

NOTHING

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NullableTemplateModel(Object value, Object nullValue, freemarker.ext.beans.BeansWrapper wrapper)

Method Summary

Modifier and Type	Method	Description
freemarker.template.TemplateModel	get(String key)
protected Object	getValueOrFallback()
boolean	isEmpty()

Methods inherited from class java.lang.Object

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

Field Details

value

protected final Object value

nullValue

protected final Object nullValue

wrapper

protected final freemarker.ext.beans.BeansWrapper wrapper

Constructor Details

NullableTemplateModel

protected NullableTemplateModel(Object value,
 Object nullValue,
 freemarker.ext.beans.BeansWrapper wrapper)

Method Details

getValueOrFallback

protected Object getValueOrFallback()

Returns:

the value. If the value is null, the fallback value is returned.

isEmpty

public boolean isEmpty()
                throws freemarker.template.TemplateModelException

Specified by:

isEmpty in interface freemarker.template.TemplateHashModel

Throws:

freemarker.template.TemplateModelException

get

public freemarker.template.TemplateModel get(String key)
                                      throws freemarker.template.TemplateModelException

Specified by:

get in interface freemarker.template.TemplateHashModel

Throws:

freemarker.template.TemplateModelException