97c3be83af
* Also make a `spring-spel-function`, `spring-filter-function` as auto-config * Fix Checkstyle violations in those module, as well as in the `spring-payload-converter-function`
28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
# SpEL Function
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This module provides a SpEL function that can be reused and composed in other applications.
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The function can be used to apply SpEL transformations on data based on a SpEL expression.
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## Beans for injection
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The `SpelFunctionConfiguration` auto-configuration provides the following bean:
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`spelFunction`
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You can use `spelFunction` as a qualifier when injecting.
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Once injected, you can use the `apply` method of the `Function` to invoke it and get the result.
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## Configuration Options
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All configuration properties are prefixed with `spel`.
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For more information on the various options available, please see link:src/main/java/org/springframework/cloud/fn/spel/SpelFunctionProperties.java[SpelFunctionProperties.java]
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## Tests
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See this link:src/test/java/org/springframework/cloud/fn/spel/SpelFunctionApplicationTests.java[test suite] for examples of how this function is used.
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## Other usage
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See this link:../../../applications/processor/transform-processor/README.adoc[README] where this function is used to create a Spring Cloud Stream transformer application. |