Delete all syntax does not work in the java client

Issues Dgraph Clients
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6

mangalaman93 commented :

@hherman1 We provide an API function Helpers.deleteEdges to delete predicates for a given uid (node). You could use that or do what it internally does, copying it here -

public static DgraphProto.Mutation deleteEdges(
      DgraphProto.Mutation mu, String uid, String... predicates) {
    DgraphProto.Mutation.Builder b = DgraphProto.Mutation.newBuilder(mu);
    for (String predicate : predicates) {
      b.addDel(
          DgraphProto.NQuad.newBuilder()
              .setSubject(uid)
              .setPredicate(predicate)
              .setObjectValue(DgraphProto.Value.newBuilder().setDefaultVal("_STAR_ALL").build())
              .build());
    }
    return b.build();
  }