VertexProvider (OpenNMS 18.0.3 API)

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method and Description
`void`	`addVertexListener(VertexListener vertexListener)`
`void`	`clearVertices()`
`boolean`	`containsVertexId(String id)` Deprecated. Use `containsVertexId(VertexRef, Criteria...)` instead.
`boolean`	`containsVertexId(VertexRef id, Criteria... criteria)`
`boolean`	`contributesTo(String namespace)` This boolean returns true if the vertices in this provider are intended to contribute to or overlay another namespace
`List<Vertex>`	`getChildren(VertexRef group, Criteria... criteria)`
`Vertex`	`getParent(VertexRef vertex)`
`List<Vertex>`	`getRootGroup()`
`int`	`getSemanticZoomLevel(VertexRef vertex)`
`Vertex`	`getVertex(String namespace, String id)`
`Vertex`	`getVertex(VertexRef reference, Criteria... criteria)`
`String`	`getVertexNamespace()` A string used to identify references belonging to this provider May only contain characters that make for a reasonable Java identifier such as letters digits and underscore (no colons, periods, commas etc.)
`int`	`getVertexTotalCount()`
`List<Vertex>`	`getVertices(Collection<? extends VertexRef> references, Criteria... criteria)`
`List<Vertex>`	`getVertices(Criteria... criteria)` Return an immutable list of vertices that match the criteria.
`boolean`	`hasChildren(VertexRef group)`
`void`	`removeVertexListener(VertexListener vertexListener)`
`boolean`	`setParent(VertexRef child, VertexRef parent)`

getVertexNamespace
```
String getVertexNamespace()
```
A string used to identify references belonging to this provider May only contain characters that make for a reasonable Java identifier such as letters digits and underscore (no colons, periods, commas etc.)

boolean containsVertexId(VertexRef id,
                         Criteria... criteria)

Vertex getVertex(String namespace,
                 String id)

Vertex getVertex(VertexRef reference,
                 Criteria... criteria)

int getSemanticZoomLevel(VertexRef vertex)

getVertices
```
List<Vertex> getVertices(Criteria... criteria)
```
Return an immutable list of vertices that match the criteria.

List<Vertex> getVertices(Collection<? extends VertexRef> references,
                         Criteria... criteria)

boolean setParent(VertexRef child,
                  VertexRef parent)

List<Vertex> getChildren(VertexRef group,
                         Criteria... criteria)

void addVertexListener(VertexListener vertexListener)

void removeVertexListener(VertexListener vertexListener)

Interface VertexProvider