NullCheckHelper (trimou-core 1.6.1.Final API)

public class NullCheckHelper
extends BasicSectionHelper

Renders a block if the param is/isn't null.

 {{#isNull item.price}}
   It's null!
 {{/isNull}}

Multiple params may be evaluated. The default evaluation logic is conjunction:

 {{#isNull item.active item.valid}}
   All are null.
 {{/isNull}}

The evaluation logic may be specified:

 {{#isNull item.active item.valid logic="or"}}
   At least one is null.
 {{/isNull}}

Nested Classes
Modifier and Type	Class and Description
`protected static class`	`MatchingSectionHelper.EvaluationLogic`

Field Summary
- Fields inherited from class org.trimou.handlebars.BasicSectionHelper
  SECTION_TYPES
- Fields inherited from class org.trimou.handlebars.BasicHelper
  HELPER_TAG_TYPES

Constructors
Constructor and Description
`NullCheckHelper()` Test null.
`NullCheckHelper(boolean testNotNull)`

Methods
Modifier and Type	Method and Description
`void`	`execute(Options options)` Execute the helper.
`protected MatchingSectionHelper.EvaluationLogic`	`getDefaultLogic()`
`protected boolean`	`hasEmptyParamsSupport()`
`protected boolean`	`isMatching(java.lang.Object value)`
`protected int`	`numberOfRequiredParameters()`

Methods inherited from class org.trimou.handlebars.BasicSectionHelper
allowedTagTypes

Methods inherited from class org.trimou.handlebars.BasicHelper
numberOfRequiredHashEntries, validate

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.trimou.engine.config.ConfigurationAware
getConfigurationKeys

protected boolean isMatching(java.lang.Object value)

protected MatchingSectionHelper.EvaluationLogic getDefaultLogic()

protected boolean hasEmptyParamsSupport()

Class NullCheckHelper