Query class Null safety Query

A Database query.

Implemented types

• Resource

Implementers

• AsyncQuery
• From
• GroupBy
• Having
• Joins
• Limit
• OrderBy
• Select
• SyncQuery
• Where

Constructors

Query()

Properties

hashCode → int

The hash code for this object.

read-only, inherited

isClosed → bool

Whether this resource has been closed.

read-only, inherited

jsonRepresentation → String?

The JSON representation of this query.

read-only

n1ql → String?

The N1QL string of this query.

read-only

parameters → Parameters?

The values with which to substitute the parameters defined in the query.

read-only

runtimeType → Type

A representation of the runtime type of the object.

read-only, inherited

Methods

addChangeListener(QueryChangeListener<ResultSet> listener) → FutureOr<ListenerToken>

Adds a listener to be notified of changes to the results of this query.

changes() → Stream<QueryChange<ResultSet>>

Returns a Stream to be notified of changes to the results of this query.

execute() → FutureOr<ResultSet>

Executes this query.

explain() → FutureOr<String>

Returns a string describing the implementation of the compiled query.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a non-existent method or property is accessed.

inherited

removeChangeListener(ListenerToken token) → FutureOr<void>

Removes a previously added change listener.

setParameters(Parameters? value) → FutureOr<void>

Sets the parameters of this query.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

fromJsonRepresentation(Database database, String jsonRepresentation) → FutureOr<Query>

Creates a Query from the Query.jsonRepresentation of a query.

fromJsonRepresentationAsync(AsyncDatabase database, String jsonRepresentation) → Future<AsyncQuery>

Creates an AsyncQuery from the Query.jsonRepresentation of a query.

fromJsonRepresentationSync(SyncDatabase database, String jsonRepresentation) → SyncQuery

Creates an SyncQuery from the Query.jsonRepresentation of a query.

fromN1ql(Database database, String query) → FutureOr<Query>

Creates an Query from a N1QL query.

fromN1qlAsync(AsyncDatabase database, String query) → Future<AsyncQuery>

Creates an AsyncQuery from a N1QL query.

fromN1qlSync(SyncDatabase database, String query) → SyncQuery

Creates a SyncQuery from a N1QL query.