# libtmux.data/predicate

- **Module:** libtmux.data
- **Package:** io.github.libtmux:libtmux-clojure
- **Language:** Clojure
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-java/blob/5f88402151ff08fc0390dd438b90963692ec3fe4/libtmux-clojure/src/main/clojure/libtmux/data.clj#L102
- **Public owner:** libtmux.data
- **Page:** https://libtmux.org/en/clojure/latest/reference/libtmux-data-predicate/

```
(predicate expression)
```

Adapts a Java FilterExpr to a predicate over captured entries.

Evaluates the preserved `:tmux/ref`, including Java relation semantics;
editing fields in an entry does not change the reference being queried.
[[matching]] provides transducer and sequence arities; [[data]] removes refs.

## Parameters

- `expression` (`io.github.libtmux.query.FilterExpr`)