Module filter 

JSON predicate filtering for event consumption.

The filter engine supports:

• Logical operators: $and, $or, $not
• Dot-path field access: "foo.bar.baz"
• Equality matching (values must match exactly)

Filtering is performed after retrieval from the adapter, not pushed down to the storage layer.

Structs

CompiledSegment

One step in a compiled dot-path.

EqCondition

Inner equality condition (path + value).

FilterBuilder

Filter builder for fluent API.

Enums

CompiledFilter

Pre-compiled filter where every dot-path is split + each segment’s integer parse is cached. Produced once via Filter::compile and reused across every event in a poll.

Filter

A filter predicate for matching events.

Functions

json_path_get

Efficient dot-path accessor for JSON values.