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Editorial Team
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Asked: 2026-05-31T09:21:45+00:00

In Spring expression language (SpEL) each textual relational operator has a symbolic equivalent. For

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In Spring expression language (SpEL) each textual relational operator has a symbolic equivalent. For example, eq can be written as ==, and lt can be written as < (source here).

The logical operators, however, don’t have a symbolic equivalent – at least as far as I can tell. I have to use and and or, the expected notation of & and | is just not there (for some reason not is different, it has the ! equivalent).

Any idea if & and | are available, or if it is possible to extend Spring to support them?

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1 Answer

  1. Editorial Team

    You have to take a look at org.springframework.expression.spel.standard.Tokenizer in method process() where you will realize |, &, || and && are not supported. Adding this would require to subclass the Tokenizer and also to subclass the org.springframework.expression.spel.standard.InternalSpelExpressionParser because in its .doParseExpression()` method the Tokenizer is instantiated directly… Source of Spring 3.1 version was taken by me.

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