|ClosureExpressionVisitor||Walks an expression graph and turns it into a PHP closure.|
|Comparison||Comparison of a field with a value by the given operator.|
|CompositeExpression||Expression of Expressions combined by AND or OR operation.|
An Expression visitor walks a graph of expressions and turns them into a query for the underlying implementation.
|Value||Expression for the Selectable interface.|
|Expression||Expression for the Selectable interface.|