Interface IExpressionObjectFactory
- All Known Implementing Classes:
StandardExpressionObjectFactory
Factory objects for creating IExpressionObjects
instances. These factories are the artifacts
specified by IExpressionObjectDialect
implementations, instead of specifying
the expression objects themselves, so that these expression objects are only created when really needed
in template expressions.
- Since:
- 3.0.0
- Author:
- Daniel Fernández
-
Method Summary
Modifier and TypeMethodDescriptionbuildObject
(IExpressionContext context, String expressionObjectName) Build the requested object.Return the complete list of expression objects that can be created by this factory.boolean
isCacheable
(String expressionObjectName) Returns whether a specific expression object can be cached and reused for all expressions in the same template execution or not.
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Method Details
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getAllExpressionObjectNames
Return the complete list of expression objects that can be created by this factory.
This list will be used for determining if a factory might actually be asked to build an object, so it should contain all possible objects to be built by the factory.
- Returns:
- the list of objects this factory can build.
-
buildObject
Build the requested object.
- Parameters:
context
- the context being used for processing the template.expressionObjectName
- the name of the expression object to be built.- Returns:
- the built object, or
null
if the object could not be built.
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isCacheable
Returns whether a specific expression object can be cached and reused for all expressions in the same template execution or not.
Note this cacheable flag refers only to reuse of the object in expressions in expressions executed during a single template execution.
- Parameters:
expressionObjectName
- the name of the expression object.- Returns:
true
is the object is to be considered cacheable,false
if not.
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