Description

Abstract asynchronous query execution interface.

Controls the execution of a query, reports busy state and allows to fetch results on demand.

Inherits QObject.

Public Member Functions
	QueryExecution (QueryContext &context)
	Constructs a query execution for context

virtual void	cancel ()=0
	Cancels the query processing.

virtual void	fetchMore ()=0
	Fetches more results.

virtual bool	canFetchMore () const =0
	Returns `true` if there are more results to fetch, otherwise returns `false`.

virtual bool	isActive () const =0
	Returns `true` if the query is being processed, otherwise returns `false`.

Public Attributes
const uint	id
	The unique id of this query execution.

const QueryContext &	context
	The query context of this query execution.

QueryResults	results
	The results of this query.

Signals
void	activeChanged (bool active)
	Emitted when query processing started or finished.

Member Function Documentation

void albert::QueryExecution::activeChanged ( bool active )

signal

Emitted when query processing started or finished.

Note: The UI state machine expects results to be added only while active is true.

The documentation for this class was generated from the following file: