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Vertices.md

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Manipulating vertices

ArangoVertexCollection.getVertex

ArangoVertexCollection.getVertex(String key, Class<T> type, DocumentReadOptions options) : T

Retrieves the vertex document with the given key from the collection.

Arguments

  • key: String

    The key of the vertex

  • type: Class<T>

    The type of the vertex-document (POJO class, VPackSlice or String for Json)

  • options: DocumentReadOptions

    • ifNoneMatch: String

      Document revision must not contain If-None-Match

    • ifMatch: String

      Document revision must contain If-Match

    • catchException: Boolean

      Whether or not catch possible thrown exceptions

ArangoVertexCollection.insertVertex

ArangoVertexCollection.insertVertex(T value, VertexCreateOptions options) : VertexEntity

Creates a new vertex in the collection.

Arguments

  • value: T

    A representation of a single vertex (POJO, VPackSlice or String for Json)

  • options: VertexCreateOptions

    • waitForSync: Boolean

      Wait until document has been synced to disk.

Examples

ArangoDB arango = new ArangoDB.Builder().build();
ArangoDatabase db = arango.db("myDB");
ArangoGraph graph = db.graph("some-graph");
ArangoVertexCollection collection = graph.vertexCollection("some-vertex-collection");

BaseDocument document = new BaseDocument();
document.addAttribute("some", "data");
collection.insertVertex(document, new VertexCreateOptions());

ArangoVertexCollection.replaceVertex

ArangoVertexCollection.replaceVertex(String key, T value, VertexReplaceOptions options) : VertexUpdateEntity

Replaces the vertex with key with the one in the body, provided there is such a vertex and no precondition is violated.

Arguments

  • key: String

    The key of the vertex

  • value: T

    A representation of a single vertex (POJO, VPackSlice or String for Json)

  • options: VertexReplaceOptions

    • waitForSync: Boolean

      Wait until document has been synced to disk.

    • ifMatch: String

      Replace a document based on target revision

Examples

ArangoDB arango = new ArangoDB.Builder().build();
ArangoDatabase db = arango.db("myDB");
ArangoGraph graph = db.graph("some-graph");
ArangoVertexCollection collection = graph.vertexCollection("some-vertex-collection");

BaseDocument document = new BaseDocument();
collection.replaceVertex("some-key", document, new VertexReplaceOptions());

ArangoVertexCollection.updateVertex

ArangoVertexCollection.updateVertex(String key, T value, VertexUpdateOptions options) : VertexUpdateEntity

Updates the vertex with key with the one in the body, provided there is such a vertex and no precondition is violated.

Arguments

  • key: String

    The key of the vertex

  • value: T

    A representation of a single vertex (POJO, VPackSlice or String for Json)

  • options: VertexUpdateOptions

    • waitForSync: Boolean

      Wait until document has been synced to disk.

    • ifMatch: String

      Update a document based on target revision

    • keepNull: Boolean

      If the intention is to delete existing attributes with the patch command, the URL query parameter keepNull can be used with a value of false. This will modify the behavior of the patch command to remove any attributes from the existing document that are contained in the patch document with an attribute value of null.

Examples

ArangoDB arango = new ArangoDB.Builder().build();
ArangoDatabase db = arango.db("myDB");
ArangoGraph graph = db.graph("some-graph");
ArangoVertexCollection collection = graph.vertexCollection("some-vertex-collection");

BaseDocument document = new BaseDocument();
collection.updateVertex("some-key", document, new VertexUpdateOptions());

ArangoVertexCollection.deleteVertex

ArangoVertexCollection.deleteVertex(String key, VertexDeleteOptions options) : void

Deletes the vertex with the given key from the collection.

Arguments

  • key: String

    The key of the vertex

  • options : VertexDeleteOptions

    • waitForSync: Boolean

      Wait until document has been synced to disk.

    • ifMatch: String

      Remove a document based on target revision

Examples

ArangoDB arango = new ArangoDB.Builder().build();
ArangoDatabase db = arango.db("myDB");
ArangoGraph graph = db.graph("some-graph");
ArangoVertexCollection collection = graph.vertexCollection("some-vertex-collection");

collection.deleteVertex("some-key", new VertexDeleteOptions());