Radu Cotescu created SLING-8737:
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Summary: Add support for lazily-evaluated bindings
Key: SLING-8737
URL: https://issues.apache.org/jira/browse/SLING-8737
Project: Sling
Issue Type: New Feature
Components: Scripting
Reporter: Radu Cotescu
Fix For: Scripting Core 2.1.0
The {{org.apache.sling.scripting.core}} module provides support for passing a
{{javax.script.Bindings}} to script engines. The current implementation relies
directly on {{javax.script.SimpleBindings}}, which means that the values with
which the map is populated have to be computed before insertion. In some cases
these computations are not trivial, however there's no guarantee that the value
will actually be used.
In order to optimise the {{Bindings}} usage, given that Java 8 and above
provide the
[{{Supplier}}|https://docs.oracle.com/javase/8/docs/api/java/util/function/Supplier.html]
functional interface, the {{org.apache.sling.scripting.core}} module should
optionally allow {{BindingsValuesProvider}}s to provide {{Supplier}}s, which
are invoked on-demand.
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