Defining Collection Filters

27.10.5.4 Defining Collection Filters

You can define a vetex collection filter, as shown in the following code:

// Obtain a vertex collection from an algorithm, query execution or any other way
opg4j> VertexCollection<?> vertexCollection = ...
// Define a filter from the collection
opg4j> var vertexFilter = VertexFilter.fromCollection(vertexCollection)

// Obtain a vertex collection from an algorithm, query execution or any other way
VertexCollection<?> vertexCollection = ...
// Define a filter from the collection
VertexFilter vertexFilter = VertexFilter.fromCollection(vertexCollection);

from pypgx.api.filters import VertexFilter
# Obtain a vertex collection from an algorithm, query execution or any other way
vertex_collection = ...
# Define a filter from the collection
vertex_filter = VertexFilter.from_collection(vertex_collection)

You can define a edge collection filter, as shown in the following code:

// Obtain an edge collection from an algorithm, query execution or any other way
opg4j> EdgeCollection edgeCollection = ...
// Define a filter from the collection
opg4j> var edgeFilter = EdgeFilter.fromCollection(edgeCollection)

// Obtain an edge collection from an algorithm, query execution or any other way
EdgeCollection edgeCollection = ...
// Define a filter from the collection
EdgeFilter edgeFilter = EdgeFilter.fromCollection(edgeCollection);

from pypgx.api.filters import EdgeFilter
# Obtain an edge collection from an algorithm, query execution or any other way
edge_collection = ...
# Define a filter from the collection
edge_filter = EdgeFilter.from_collection(edge_collection)

Parent topic: Operations on Filter Expressions