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vendor/cloud.google.com/go/bigquery/read.go

@@ -0,0 +1,64 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// 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
+//
+//      http://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.
+
+package bigquery
+
+import (
+	"errors"
+
+	"golang.org/x/net/context"
+)
+
+func (conf *readTableConf) fetch(ctx context.Context, s service, token string) (*readDataResult, error) {
+	return s.readTabledata(ctx, conf, token)
+}
+
+func (conf *readTableConf) setPaging(pc *pagingConf) { conf.paging = *pc }
+
+// Read fetches the contents of the table.
+func (t *Table) Read(ctx context.Context) *RowIterator {
+	return newRowIterator(ctx, t.c.service, &readTableConf{
+		projectID: t.ProjectID,
+		datasetID: t.DatasetID,
+		tableID:   t.TableID,
+	})
+}
+
+func (conf *readQueryConf) fetch(ctx context.Context, s service, token string) (*readDataResult, error) {
+	return s.readQuery(ctx, conf, token)
+}
+
+func (conf *readQueryConf) setPaging(pc *pagingConf) { conf.paging = *pc }
+
+// Read fetches the results of a query job.
+// If j is not a query job, Read returns an error.
+func (j *Job) Read(ctx context.Context) (*RowIterator, error) {
+	if !j.isQuery {
+		return nil, errors.New("Cannot read from a non-query job")
+	}
+	return newRowIterator(ctx, j.service, &readQueryConf{
+		projectID: j.projectID,
+		jobID:     j.jobID,
+	}), nil
+}
+
+// Read submits a query for execution and returns the results via a RowIterator.
+// It is a shorthand for Query.Run followed by Job.Read.
+func (q *Query) Read(ctx context.Context) (*RowIterator, error) {
+	job, err := q.Run(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return job.Read(ctx)
+}