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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go_gapic. DO NOT EDIT.
package workflows
import (
"context"
"fmt"
"math"
"net/url"
"time"
"cloud.google.com/go/longrunning"
lroauto "cloud.google.com/go/longrunning/autogen"
gax "github.com/googleapis/gax-go/v2"
"google.golang.org/api/iterator"
"google.golang.org/api/option"
"google.golang.org/api/option/internaloption"
gtransport "google.golang.org/api/transport/grpc"
workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"
longrunningpb "google.golang.org/genproto/googleapis/longrunning"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
"google.golang.org/protobuf/proto"
)
var newClientHook clientHook
// CallOptions contains the retry settings for each method of Client.
type CallOptions struct {
ListWorkflows []gax.CallOption
GetWorkflow []gax.CallOption
CreateWorkflow []gax.CallOption
DeleteWorkflow []gax.CallOption
UpdateWorkflow []gax.CallOption
}
func defaultGRPCClientOptions() []option.ClientOption {
return []option.ClientOption{
internaloption.WithDefaultEndpoint("workflows.googleapis.com:443"),
internaloption.WithDefaultMTLSEndpoint("workflows.mtls.googleapis.com:443"),
internaloption.WithDefaultAudience("https://workflows.googleapis.com/"),
internaloption.WithDefaultScopes(DefaultAuthScopes()...),
option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
grpc.MaxCallRecvMsgSize(math.MaxInt32))),
}
}
func defaultCallOptions() *CallOptions {
return &CallOptions{
ListWorkflows: []gax.CallOption{},
GetWorkflow: []gax.CallOption{},
CreateWorkflow: []gax.CallOption{},
DeleteWorkflow: []gax.CallOption{},
UpdateWorkflow: []gax.CallOption{},
}
}
// internalClient is an interface that defines the methods availaible from Workflows API.
type internalClient interface {
Close() error
setGoogleClientInfo(...string)
Connection() *grpc.ClientConn
ListWorkflows(context.Context, *workflowspb.ListWorkflowsRequest, ...gax.CallOption) *WorkflowIterator
GetWorkflow(context.Context, *workflowspb.GetWorkflowRequest, ...gax.CallOption) (*workflowspb.Workflow, error)
CreateWorkflow(context.Context, *workflowspb.CreateWorkflowRequest, ...gax.CallOption) (*CreateWorkflowOperation, error)
CreateWorkflowOperation(name string) *CreateWorkflowOperation
DeleteWorkflow(context.Context, *workflowspb.DeleteWorkflowRequest, ...gax.CallOption) (*DeleteWorkflowOperation, error)
DeleteWorkflowOperation(name string) *DeleteWorkflowOperation
UpdateWorkflow(context.Context, *workflowspb.UpdateWorkflowRequest, ...gax.CallOption) (*UpdateWorkflowOperation, error)
UpdateWorkflowOperation(name string) *UpdateWorkflowOperation
}
// Client is a client for interacting with Workflows API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Workflows is used to deploy and execute workflow programs.
// Workflows makes sure the program executes reliably, despite hardware and
// networking interruptions.
type Client struct {
// The internal transport-dependent client.
internalClient internalClient
// The call options for this service.
CallOptions *CallOptions
// LROClient is used internally to handle long-running operations.
// It is exposed so that its CallOptions can be modified if required.
// Users should not Close this client.
LROClient *lroauto.OperationsClient
}
// Wrapper methods routed to the internal client.
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *Client) Close() error {
return c.internalClient.Close()
}
// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *Client) setGoogleClientInfo(keyval ...string) {
c.internalClient.setGoogleClientInfo(keyval...)
}
// Connection returns a connection to the API service.
//
// Deprecated.
func (c *Client) Connection() *grpc.ClientConn {
return c.internalClient.Connection()
}
// ListWorkflows lists Workflows in a given project and location.
// The default order is not specified.
func (c *Client) ListWorkflows(ctx context.Context, req *workflowspb.ListWorkflowsRequest, opts ...gax.CallOption) *WorkflowIterator {
return c.internalClient.ListWorkflows(ctx, req, opts...)
}
// GetWorkflow gets details of a single Workflow.
func (c *Client) GetWorkflow(ctx context.Context, req *workflowspb.GetWorkflowRequest, opts ...gax.CallOption) (*workflowspb.Workflow, error) {
return c.internalClient.GetWorkflow(ctx, req, opts...)
}
// CreateWorkflow creates a new workflow. If a workflow with the specified name already
// exists in the specified project and location, the long running operation
// will return ALREADY_EXISTS error.
func (c *Client) CreateWorkflow(ctx context.Context, req *workflowspb.CreateWorkflowRequest, opts ...gax.CallOption) (*CreateWorkflowOperation, error) {
return c.internalClient.CreateWorkflow(ctx, req, opts...)
}
// CreateWorkflowOperation returns a new CreateWorkflowOperation from a given name.
// The name must be that of a previously created CreateWorkflowOperation, possibly from a different process.
func (c *Client) CreateWorkflowOperation(name string) *CreateWorkflowOperation {
return c.internalClient.CreateWorkflowOperation(name)
}
// DeleteWorkflow deletes a workflow with the specified name.
// This method also cancels and deletes all running executions of the
// workflow.
func (c *Client) DeleteWorkflow(ctx context.Context, req *workflowspb.DeleteWorkflowRequest, opts ...gax.CallOption) (*DeleteWorkflowOperation, error) {
return c.internalClient.DeleteWorkflow(ctx, req, opts...)
}
// DeleteWorkflowOperation returns a new DeleteWorkflowOperation from a given name.
// The name must be that of a previously created DeleteWorkflowOperation, possibly from a different process.
func (c *Client) DeleteWorkflowOperation(name string) *DeleteWorkflowOperation {
return c.internalClient.DeleteWorkflowOperation(name)
}
// UpdateWorkflow updates an existing workflow.
// Running this method has no impact on already running executions of the
// workflow. A new revision of the workflow may be created as a result of a
// successful update operation. In that case, such revision will be used
// in new workflow executions.
func (c *Client) UpdateWorkflow(ctx context.Context, req *workflowspb.UpdateWorkflowRequest, opts ...gax.CallOption) (*UpdateWorkflowOperation, error) {
return c.internalClient.UpdateWorkflow(ctx, req, opts...)
}
// UpdateWorkflowOperation returns a new UpdateWorkflowOperation from a given name.
// The name must be that of a previously created UpdateWorkflowOperation, possibly from a different process.
func (c *Client) UpdateWorkflowOperation(name string) *UpdateWorkflowOperation {
return c.internalClient.UpdateWorkflowOperation(name)
}
// gRPCClient is a client for interacting with Workflows API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type gRPCClient struct {
// Connection pool of gRPC connections to the service.
connPool gtransport.ConnPool
// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
disableDeadlines bool
// Points back to the CallOptions field of the containing Client
CallOptions **CallOptions
// The gRPC API client.
client workflowspb.WorkflowsClient
// LROClient is used internally to handle long-running operations.
// It is exposed so that its CallOptions can be modified if required.
// Users should not Close this client.
LROClient **lroauto.OperationsClient
// The x-goog-* metadata to be sent with each request.
xGoogMetadata metadata.MD
}
// NewClient creates a new workflows client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Workflows is used to deploy and execute workflow programs.
// Workflows makes sure the program executes reliably, despite hardware and
// networking interruptions.
func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
clientOpts := defaultGRPCClientOptions()
if newClientHook != nil {
hookOpts, err := newClientHook(ctx, clientHookParams{})
if err != nil {
return nil, err
}
clientOpts = append(clientOpts, hookOpts...)
}
disableDeadlines, err := checkDisableDeadlines()
if err != nil {
return nil, err
}
connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
if err != nil {
return nil, err
}
client := Client{CallOptions: defaultCallOptions()}
c := &gRPCClient{
connPool: connPool,
disableDeadlines: disableDeadlines,
client: workflowspb.NewWorkflowsClient(connPool),
CallOptions: &client.CallOptions,
}
c.setGoogleClientInfo()
client.internalClient = c
client.LROClient, err = lroauto.NewOperationsClient(ctx, gtransport.WithConnPool(connPool))
if err != nil {
// This error "should not happen", since we are just reusing old connection pool
// and never actually need to dial.
// If this does happen, we could leak connp. However, we cannot close conn:
// If the user invoked the constructor with option.WithGRPCConn,
// we would close a connection that's still in use.
// TODO: investigate error conditions.
return nil, err
}
c.LROClient = &client.LROClient
return &client, nil
}
// Connection returns a connection to the API service.
//
// Deprecated.
func (c *gRPCClient) Connection() *grpc.ClientConn {
return c.connPool.Conn()
}
// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *gRPCClient) setGoogleClientInfo(keyval ...string) {
kv := append([]string{"gl-go", versionGo()}, keyval...)
kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version)
c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *gRPCClient) Close() error {
return c.connPool.Close()
}
func (c *gRPCClient) ListWorkflows(ctx context.Context, req *workflowspb.ListWorkflowsRequest, opts ...gax.CallOption) *WorkflowIterator {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append((*c.CallOptions).ListWorkflows[0:len((*c.CallOptions).ListWorkflows):len((*c.CallOptions).ListWorkflows)], opts...)
it := &WorkflowIterator{}
req = proto.Clone(req).(*workflowspb.ListWorkflowsRequest)
it.InternalFetch = func(pageSize int, pageToken string) ([]*workflowspb.Workflow, string, error) {
var resp *workflowspb.ListWorkflowsResponse
req.PageToken = pageToken
if pageSize > math.MaxInt32 {
req.PageSize = math.MaxInt32
} else {
req.PageSize = int32(pageSize)
}
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.ListWorkflows(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, "", err
}
it.Response = resp
return resp.GetWorkflows(), resp.GetNextPageToken(), nil
}
fetch := func(pageSize int, pageToken string) (string, error) {
items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
if err != nil {
return "", err
}
it.items = append(it.items, items...)
return nextPageToken, nil
}
it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
it.pageInfo.MaxSize = int(req.GetPageSize())
it.pageInfo.Token = req.GetPageToken()
return it
}
func (c *gRPCClient) GetWorkflow(ctx context.Context, req *workflowspb.GetWorkflowRequest, opts ...gax.CallOption) (*workflowspb.Workflow, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append((*c.CallOptions).GetWorkflow[0:len((*c.CallOptions).GetWorkflow):len((*c.CallOptions).GetWorkflow)], opts...)
var resp *workflowspb.Workflow
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.GetWorkflow(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}
func (c *gRPCClient) CreateWorkflow(ctx context.Context, req *workflowspb.CreateWorkflowRequest, opts ...gax.CallOption) (*CreateWorkflowOperation, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append((*c.CallOptions).CreateWorkflow[0:len((*c.CallOptions).CreateWorkflow):len((*c.CallOptions).CreateWorkflow)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.CreateWorkflow(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &CreateWorkflowOperation{
lro: longrunning.InternalNewOperation(*c.LROClient, resp),
}, nil
}
func (c *gRPCClient) DeleteWorkflow(ctx context.Context, req *workflowspb.DeleteWorkflowRequest, opts ...gax.CallOption) (*DeleteWorkflowOperation, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append((*c.CallOptions).DeleteWorkflow[0:len((*c.CallOptions).DeleteWorkflow):len((*c.CallOptions).DeleteWorkflow)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.DeleteWorkflow(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &DeleteWorkflowOperation{
lro: longrunning.InternalNewOperation(*c.LROClient, resp),
}, nil
}
func (c *gRPCClient) UpdateWorkflow(ctx context.Context, req *workflowspb.UpdateWorkflowRequest, opts ...gax.CallOption) (*UpdateWorkflowOperation, error) {
md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "workflow.name", url.QueryEscape(req.GetWorkflow().GetName())))
ctx = insertMetadata(ctx, c.xGoogMetadata, md)
opts = append((*c.CallOptions).UpdateWorkflow[0:len((*c.CallOptions).UpdateWorkflow):len((*c.CallOptions).UpdateWorkflow)], opts...)
var resp *longrunningpb.Operation
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.client.UpdateWorkflow(ctx, req, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return &UpdateWorkflowOperation{
lro: longrunning.InternalNewOperation(*c.LROClient, resp),
}, nil
}
// CreateWorkflowOperation manages a long-running operation from CreateWorkflow.
type CreateWorkflowOperation struct {
lro *longrunning.Operation
}
// CreateWorkflowOperation returns a new CreateWorkflowOperation from a given name.
// The name must be that of a previously created CreateWorkflowOperation, possibly from a different process.
func (c *gRPCClient) CreateWorkflowOperation(name string) *CreateWorkflowOperation {
return &CreateWorkflowOperation{
lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *CreateWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error) {
var resp workflowspb.Workflow
if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
return nil, err
}
return &resp, nil
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *CreateWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error) {
var resp workflowspb.Workflow
if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
return nil, err
}
if !op.Done() {
return nil, nil
}
return &resp, nil
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *CreateWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error) {
var meta workflowspb.OperationMetadata
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *CreateWorkflowOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *CreateWorkflowOperation) Name() string {
return op.lro.Name()
}
// DeleteWorkflowOperation manages a long-running operation from DeleteWorkflow.
type DeleteWorkflowOperation struct {
lro *longrunning.Operation
}
// DeleteWorkflowOperation returns a new DeleteWorkflowOperation from a given name.
// The name must be that of a previously created DeleteWorkflowOperation, possibly from a different process.
func (c *gRPCClient) DeleteWorkflowOperation(name string) *DeleteWorkflowOperation {
return &DeleteWorkflowOperation{
lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *DeleteWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.WaitWithInterval(ctx, nil, time.Minute, opts...)
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *DeleteWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) error {
return op.lro.Poll(ctx, nil, opts...)
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *DeleteWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error) {
var meta workflowspb.OperationMetadata
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *DeleteWorkflowOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *DeleteWorkflowOperation) Name() string {
return op.lro.Name()
}
// UpdateWorkflowOperation manages a long-running operation from UpdateWorkflow.
type UpdateWorkflowOperation struct {
lro *longrunning.Operation
}
// UpdateWorkflowOperation returns a new UpdateWorkflowOperation from a given name.
// The name must be that of a previously created UpdateWorkflowOperation, possibly from a different process.
func (c *gRPCClient) UpdateWorkflowOperation(name string) *UpdateWorkflowOperation {
return &UpdateWorkflowOperation{
lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
}
}
// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *UpdateWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error) {
var resp workflowspb.Workflow
if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
return nil, err
}
return &resp, nil
}
// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *UpdateWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error) {
var resp workflowspb.Workflow
if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
return nil, err
}
if !op.Done() {
return nil, nil
}
return &resp, nil
}
// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *UpdateWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error) {
var meta workflowspb.OperationMetadata
if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
return nil, nil
} else if err != nil {
return nil, err
}
return &meta, nil
}
// Done reports whether the long-running operation has completed.
func (op *UpdateWorkflowOperation) Done() bool {
return op.lro.Done()
}
// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *UpdateWorkflowOperation) Name() string {
return op.lro.Name()
}
// WorkflowIterator manages a stream of *workflowspb.Workflow.
type WorkflowIterator struct {
items []*workflowspb.Workflow
pageInfo *iterator.PageInfo
nextFunc func() error
// Response is the raw response for the current page.
// It must be cast to the RPC response type.
// Calling Next() or InternalFetch() updates this value.
Response interface{}
// InternalFetch is for use by the Google Cloud Libraries only.
// It is not part of the stable interface of this package.
//
// InternalFetch returns results from a single call to the underlying RPC.
// The number of results is no greater than pageSize.
// If there are no more results, nextPageToken is empty and err is nil.
InternalFetch func(pageSize int, pageToken string) (results []*workflowspb.Workflow, nextPageToken string, err error)
}
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *WorkflowIterator) PageInfo() *iterator.PageInfo {
return it.pageInfo
}
// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *WorkflowIterator) Next() (*workflowspb.Workflow, error) {
var item *workflowspb.Workflow
if err := it.nextFunc(); err != nil {
return item, err
}
item = it.items[0]
it.items = it.items[1:]
return item, nil
}
func (it *WorkflowIterator) bufLen() int {
return len(it.items)
}
func (it *WorkflowIterator) takeBuf() interface{} {
b := it.items
it.items = nil
return b
}