# Uses of Interface
org.eclipse.jface.text.contentassist.IContentAssistantExtension4

Packages that use IContentAssistantExtension4
Package
Description
org.eclipse.jface.contentassist
Provides a content assist add-on for implementors of `IContentAssistSubjectControl`.
org.eclipse.jface.text.contentassist
Provides a content assist add-on for an `ITextViewer`.

## Uses of IContentAssistantExtension4 in org.eclipse.jface.contentassist

Classes in org.eclipse.jface.contentassist that implement IContentAssistantExtension4
Modifier and Type
Class
Description
`class`
`SubjectControlContentAssistant`
Deprecated.
As of 3.2, replaced by Platform UI's field assist support *

## Uses of IContentAssistantExtension4 in org.eclipse.jface.text.contentassist

Classes in org.eclipse.jface.text.contentassist that implement IContentAssistantExtension4
Modifier and Type
Class
Description
`class`
`ContentAssistant`
The standard implementation of the `IContentAssistant` interface.