How to use

uk.gov.gchq.gaffer.operation.OperationChain$Builder

constructor

public CloseableIterable<?> simpleExportAndGet() {
  // ---------------------------------------------------------
  final OperationChain<CloseableIterable<?>> opChain = new OperationChain.Builder()
      .first(new GetAllEdges())
      .then(new ExportToGafferResultCache())
      .then(new GetGafferResultCacheExport())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain);
}

  public Iterable<? extends EntitySeed> toStreamExample() {
    // ---------------------------------------------------------
    final OperationChain<Iterable<? extends EntitySeed>> opChain = new OperationChain.Builder()
        .first(new GetElements.Builder()
            .input(new EntitySeed(1), new EntitySeed(2))
            .build())
        .then(new ToEntitySeeds())
        .build();
    // ---------------------------------------------------------

    return runExample(opChain, null);
  }
}

public Iterable<?> simpleExportAndGet() {
  // ---------------------------------------------------------
  final OperationChain<Iterable<?>> opChain = new OperationChain.Builder()
      .first(new GetAllElements())
      .then(new ExportToSet<>())
      .then(new DiscardOutput())
      .then(new GetSetExport())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain, null);
}

  public List<? extends Element> toListExample() {
    // ---------------------------------------------------------
    final OperationChain<List<? extends Element>> opChain = new OperationChain.Builder()
        .first(new GetElements.Builder()
            .input(new EntitySeed(1), new EntitySeed(2))
            .build())
        .then(new ToList<>())
        .build();
    // ---------------------------------------------------------

    return runExample(opChain, null);
  }
}

public Iterable<?> simpleExportAndGet() {
  // ---------------------------------------------------------
  final OperationChain<Iterable<?>> opChain = new OperationChain.Builder()
      .first(new GetAllElements())
      .then(new ExportToSet<>())
      .then(new DiscardOutput())
      .then(new GetSetExport())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain, null);
}

  public GroupCounts countAllElementGroupsWithLimit() {
    // ---------------------------------------------------------
    final OperationChain<GroupCounts> opChain = new OperationChain.Builder()
        .first(new GetAllElements<>())
        .then(new CountGroups(5))
        .build();
    // ---------------------------------------------------------

    return runExample(opChain);
  }
}

public CloseableIterable<?> simpleExportAndGet() {
  // ---------------------------------------------------------
  final OperationChain<CloseableIterable<?>> opChain = new OperationChain.Builder()
      .first(new GetAllEdges())
      .then(new ExportToSet())
      .then(new GetSetExport())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain);
}

public CloseableIterable<?> getExport() {
  // ---------------------------------------------------------
  final OperationChain<CloseableIterable<?>> opChain = new OperationChain.Builder()
      .first(new GetGafferResultCacheExport.Builder()
          .jobId(jobDetail.getJobId())
          .build())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain, null);
}

public void limitElementsTo3WithoutTruncation() {
  // ---------------------------------------------------------
  final OperationChain<Iterable<? extends Element>> opChain = new OperationChain.Builder()
      .first(new GetAllElements())
      .then(new Limit<>(3, false))
      .build();
  // ---------------------------------------------------------
  showExample(opChain, "Setting this flag to false will " +
      "throw an error instead of truncating the iterable. " +
      "In this case there are more than 3 elements, so " +
      "when executed a LimitExceededException would be thrown.");
}

public Iterable<? extends Element> limitElementsTo3() {
  // ---------------------------------------------------------
  final OperationChain<Iterable<? extends Element>> opChain = new OperationChain.Builder()
      .first(new GetAllElements())
      .then(new Limit<>(3))
      .build();
  // ---------------------------------------------------------
  return runExample(opChain, null);
}

public CloseableIterable<?> simpleExportAndGet() {
  // ---------------------------------------------------------
  final OperationChain<CloseableIterable<?>> opChain = new OperationChain.Builder()
      .first(new GetAllEdges())
      .then(new ExportToSet())
      .then(new GetSetExport())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain);
}

  public JobDetail getJobDetailsInOperationChain() {
    // ---------------------------------------------------------
    final OperationChain<JobDetail> opChain = new OperationChain.Builder()
        .first(new GetAllEdges())
        .then(new GetJobDetails())
        .build();
    // ---------------------------------------------------------

    final JobDetail jobDetail = runExample(opChain);
    jobId = jobDetail.getJobId();
    return jobDetail;
  }
}

  public Iterable<Element> limitElementsTo3InChain() {
    // ---------------------------------------------------------
    final OperationChain<CloseableIterable<Element>> opChain = new OperationChain.Builder()
        .first(new GetAllElements<>())
        .then(new Limit.Builder<Element>()
            .limitResults(3)
            .build())
        .build();
    // ---------------------------------------------------------

    return runExample(opChain);
  }
}

  public Stream<? extends Element> toStreamExample() {
    // ---------------------------------------------------------
    final OperationChain<Stream<? extends Element>> opChain = new Builder()
        .first(new GetElements.Builder()
            .input(new EntitySeed(1), new EntitySeed(2))
            .build())
        .then(new ToStream<>())
        .build();
    // ---------------------------------------------------------

    return runExample(opChain, null);
  }
}

  public GroupCounts countAllElementGroupsWithLimit() {
    // ---------------------------------------------------------
    final OperationChain<GroupCounts> opChain = new OperationChain.Builder()
        .first(new GetAllElements())
        .then(new CountGroups(5))
        .build();
    // ---------------------------------------------------------

    return runExample(opChain, null);
  }
}

public GroupCounts countAllElementGroups() {
  // ---------------------------------------------------------
  final OperationChain<GroupCounts> opChain = new OperationChain.Builder()
      .first(new GetAllElements())
      .then(new CountGroups())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain, null);
}

public JobDetail exportAndGetJobDetails() {
  // ---------------------------------------------------------
  final OperationChain<JobDetail> opChain = new OperationChain.Builder()
      .first(new GetAllElements())
      .then(new ExportToGafferResultCache<>())
      .then(new DiscardOutput())
      .then(new GetJobDetails())
      .build();
  // ---------------------------------------------- -----------
  jobDetail = runExample(opChain, null);
  return jobDetail;
}

  public Element[] toArrayExample() {
    // ---------------------------------------------------------
    final OperationChain<? extends Element[]> opChain = new OperationChain.Builder()
        .first(new GetElements.Builder()
            .input(new EntitySeed(1), new EntitySeed(2))
            .build())
        .then(new ToArray<>())
        .build();
    // ---------------------------------------------------------

    return runExample(opChain, null);
  }
}

public CloseableIterable<?> getExport() {
  // ---------------------------------------------------------
  final OperationChain<CloseableIterable<?>> opChain = new OperationChain.Builder()
      .first(new GetGafferResultCacheExport.Builder()
          .jobId(jobDetail.getJobId())
          .build())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain);
}

public CloseableIterable<?> simpleExportAndGet() {
  // ---------------------------------------------------------
  final OperationChain<CloseableIterable<?>> opChain = new OperationChain.Builder()
      .first(new GetAllEdges())
      .then(new ExportToGafferResultCache())
      .then(new GetGafferResultCacheExport())
      .build();
  // ---------------------------------------------------------
  return runExample(opChain);
}