HFilter class abstract

HFilter models a parsed tag query string.

@see Project Haystack

Implementers

• PathFilter

Properties

hashCode → int

Hash code is based on string encoding.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

and(HFilter that) → HFilter

Returns a query which is the logical-and of this and that query.

include(HDict dict, Pather pather) → bool

/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// Returns if given tags entity matches this query.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

or(HFilter that) → HFilter

Returns a query which is the logical-or of this and that query.

toStr() → String

Used to lazily build toString.

toString() → String

String encoding.

override

Operators

operator ==(Object that) → bool

Equality is based on string encoding.

override

Static Methods

eq(String path, HVal val) → HFilter

Match records which have a tag are equal to the specified value.

ge(String path, HVal val) → HFilter

Match records which have tags greater than or equal to specified value.

gt(String path, HVal val) → HFilter

Match records which have tags greater than specified value.

has(String path) → HFilter

/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// Match records which have the specified tag path defined.

le(String path, HVal val) → HFilter

Match records which have tags less than or equals to specified value.

lt(String path, HVal val) → HFilter

Match records which have tags less than the specified value.

missing(String path) → HFilter

Match records which do not define the specified tag path.

ne(String path, HVal val) → HFilter

Match records which have a tag not equal to the specified value.

parse(String s, [bool checked = true]) → HFilter?

/////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////// Decode a string into a HFilter; return null or throw ParseError if not formatted correctly.