Create a Base EdgeSampler instance. Args: graph (`Graph` object): The graph which sample from. edge_type (string): Sample edges of the specified edge_type. batch_size (int): How many edges will be returned for `get()`. strategy (string, Optional): Sampling strategy. "by_
(self,
graph,
edge_type,
batch_size,
strategy="by_order",
mask=utils.Mask.NONE)
| 26 | """ |
| 27 | |
| 28 | def __init__(self, |
| 29 | graph, |
| 30 | edge_type, |
| 31 | batch_size, |
| 32 | strategy="by_order", |
| 33 | mask=utils.Mask.NONE): |
| 34 | """ Create a Base EdgeSampler instance. |
| 35 | Args: |
| 36 | graph (`Graph` object): The graph which sample from. |
| 37 | edge_type (string): Sample edges of the specified edge_type. |
| 38 | batch_size (int): How many edges will be returned for `get()`. |
| 39 | strategy (string, Optional): Sampling strategy. "by_order", "random" |
| 40 | and "shuffle" are supported. |
| 41 | "by_order": get edges by order of how the specified edge is stored, |
| 42 | if the specified type of edges are totally visited, |
| 43 | `graphlearn.OutOfRangeError` will be raised. Several |
| 44 | `EdgeSampler`s with same type will hold a single state. |
| 45 | "random": randomly visit edges, no state will be kept. |
| 46 | "shuffle": visit the edges with shuffling, if the specified type of |
| 47 | edges are totally visited, `graphlearn.OutOfRangeError` will be |
| 48 | raised. Several `EdgeSampler`s with same type will hold a single |
| 49 | state. |
| 50 | """ |
| 51 | self._graph = graph |
| 52 | self._edge_type = edge_type |
| 53 | self._batch_size = batch_size |
| 54 | self._strategy = strategy |
| 55 | self._client = self._graph.get_client() |
| 56 | self._mask = mask |
| 57 | |
| 58 | topology = self._graph.get_topology() |
| 59 | self._node_decoders = self._graph.get_node_decoders() |
| 60 | self._edge_decoders = self._graph.get_edge_decoders() |
| 61 | |
| 62 | self._src_type, self._dst_type = \ |
| 63 | topology.get_src_type(edge_type), topology.get_dst_type(edge_type) |
| 64 | |
| 65 | def get(self): |
| 66 | """ Get batched sampled `Edges`. |
nothing calls this directly
no test coverage detected