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Class LanguageService

Main class for Language Service functionality including anything that requires knowledge of the language to perform, such as definitions, intellisense, etc.

Inheritance
System.Object
LanguageService
Namespace:Microsoft.SqlTools.ServiceLayer.LanguageServices
Assembly:Microsoft.SqlTools.ServiceLayer.dll
Syntax
public sealed class LanguageService

Properties

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Instance

Gets the singleton instance object

Declaration
public static LanguageService Instance { get; }
Type Description
LanguageService

Methods

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GetCompletionItems(TextDocumentPosition, ScriptFile, ConnectionInfo)

Return the completion item list for the current text position. This method does not await cache builds since it expects to return quickly

Declaration
public CompletionItem[] GetCompletionItems(TextDocumentPosition textDocumentPosition, ScriptFile scriptFile, ConnectionInfo connInfo)
Parameters
Type Name Description
TextDocumentPosition textDocumentPosition
ScriptFile scriptFile
ConnectionInfo connInfo
Returns
Type Description
CompletionItem[]
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HandleDidChangeConfigurationNotification(SqlToolsSettings, SqlToolsSettings, EventContext)

Handle the file configuration change notification

Declaration
public Task HandleDidChangeConfigurationNotification(SqlToolsSettings newSettings, SqlToolsSettings oldSettings, EventContext eventContext)
Parameters
Type Name Description
SqlToolsSettings newSettings
SqlToolsSettings oldSettings
EventContext eventContext
Returns
Type Description
System.Threading.Tasks.Task
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HandleDidChangeTextDocumentNotification(ScriptFile[], EventContext)

Handles text document change events

Declaration
public Task HandleDidChangeTextDocumentNotification(ScriptFile[] changedFiles, EventContext eventContext)
Parameters
Type Name Description
ScriptFile[] changedFiles
EventContext eventContext
Returns
Type Description
System.Threading.Tasks.Task
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HandleDidOpenTextDocumentNotification(ScriptFile, EventContext)

Handle the file open notification

Declaration
public Task HandleDidOpenTextDocumentNotification(ScriptFile scriptFile, EventContext eventContext)
Parameters
Type Name Description
ScriptFile scriptFile
EventContext eventContext
Returns
Type Description
System.Threading.Tasks.Task
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InitializeService(ServiceHost, SqlToolsContext)

Initializes the Language Service instance

Declaration
public void InitializeService(ServiceHost serviceHost, SqlToolsContext context)
Parameters
Type Name Description
ServiceHost serviceHost
SqlToolsContext context
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ParseAndBind(ScriptFile, ConnectionInfo)

Parses the SQL text and binds it to the SMO metadata provider if connected

Declaration
public ParseResult ParseAndBind(ScriptFile scriptFile, ConnectionInfo connInfo)
Parameters
Type Name Description
ScriptFile scriptFile
ConnectionInfo connInfo
Returns
Type Description
Microsoft.SqlServer.Management.SqlParser.Parser.ParseResult

The ParseResult instance returned from SQL Parser
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RemoveAutoCompleteCacheUriReference(ConnectionSummary, String)

Remove a reference to an autocomplete cache from a URI. If it is the last URI connected to a particular connection, then remove the cache.

Declaration
public Task RemoveAutoCompleteCacheUriReference(ConnectionSummary summary, string ownerUri)
Parameters
Type Name Description
ConnectionSummary summary
System.String ownerUri
Returns
Type Description
System.Threading.Tasks.Task
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UpdateLanguageServiceOnConnection(ConnectionInfo)

Update the autocomplete metadata provider when the user connects to a database

Declaration
public Task UpdateLanguageServiceOnConnection(ConnectionInfo info)
Parameters
Type Name Description
ConnectionInfo info
Returns
Type Description
System.Threading.Tasks.Task