database

package
Version: v0.34.0 Latest Latest
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Published: Dec 5, 2018 License: Apache-2.0 Imports: 19 Imported by: 0

Documentation

Overview

Package database is an auto-generated package for the Cloud Spanner Database Admin API.

NOTE: This package is in alpha. It is not stable, and is likely to change.

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

func DatabaseAdminDatabasePath deprecated

This function has been deprecated.
func DatabaseAdminDatabasePath(project, instance, database string) string

DatabaseAdminDatabasePath returns the path for the database resource.

Deprecated: Use

fmt.Sprintf("projects/%s/instances/%s/databases/%s", project, instance, database)

instead.

func DatabaseAdminInstancePath deprecated

This function has been deprecated.
func DatabaseAdminInstancePath(project, instance string) string

DatabaseAdminInstancePath returns the path for the instance resource.

Deprecated: Use

fmt.Sprintf("projects/%s/instances/%s", project, instance)

instead.

func DefaultAuthScopes

func DefaultAuthScopes() []string

DefaultAuthScopes reports the default set of authentication scopes to use with this package.

Types

type CreateDatabaseOperation

type CreateDatabaseOperation struct {
	// contains filtered or unexported fields
}

CreateDatabaseOperation manages a long-running operation from CreateDatabase.

func (*CreateDatabaseOperation) Done

func (op *CreateDatabaseOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*CreateDatabaseOperation) Metadata

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 (*CreateDatabaseOperation) Name

func (op *CreateDatabaseOperation) Name() string

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 (*CreateDatabaseOperation) Poll

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 (*CreateDatabaseOperation) Wait

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

type DatabaseAdminCallOptions

type DatabaseAdminCallOptions struct {
	ListDatabases      []gax.CallOption
	CreateDatabase     []gax.CallOption
	GetDatabase        []gax.CallOption
	UpdateDatabaseDdl  []gax.CallOption
	DropDatabase       []gax.CallOption
	GetDatabaseDdl     []gax.CallOption
	SetIamPolicy       []gax.CallOption
	GetIamPolicy       []gax.CallOption
	TestIamPermissions []gax.CallOption
}

DatabaseAdminCallOptions contains the retry settings for each method of DatabaseAdminClient.

type DatabaseAdminClient

type DatabaseAdminClient struct {

	// LROClient is used internally to handle longrunning operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient

	// The call options for this service.
	CallOptions *DatabaseAdminCallOptions
	// contains filtered or unexported fields
}

DatabaseAdminClient is a client for interacting with Cloud Spanner Database Admin API.

Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.

func NewDatabaseAdminClient

func NewDatabaseAdminClient(ctx context.Context, opts ...option.ClientOption) (*DatabaseAdminClient, error)

NewDatabaseAdminClient creates a new database admin client.

Cloud Spanner Database Admin API

The Cloud Spanner Database Admin API can be used to create, drop, and list databases. It also enables updating the schema of pre-existing databases.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use client.
	_ = c
}
Output:

func (*DatabaseAdminClient) Close

func (c *DatabaseAdminClient) Close() error

Close closes the connection to the API service. The user should invoke this when the client is no longer required.

func (*DatabaseAdminClient) Connection

func (c *DatabaseAdminClient) Connection() *grpc.ClientConn

Connection returns the client's connection to the API service.

func (*DatabaseAdminClient) CreateDatabase

CreateDatabase creates a new Cloud Spanner database and starts to prepare it for serving. The returned [long-running operation][google.longrunning.Operation] will have a name of the format <database_name>/operations/<operation_id> and can be used to track preparation of the database. The [metadata][google.longrunning.Operation.metadata] field type is [CreateDatabaseMetadata][google.spanner.admin.database.v1.CreateDatabaseMetadata]. The [response][google.longrunning.Operation.response] field type is [Database][google.spanner.admin.database.v1.Database], if successful.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	databasepb "google.golang.org/genproto/googleapis/spanner/admin/database/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &databasepb.CreateDatabaseRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.CreateDatabase(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	resp, err := op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}
Output:

func (*DatabaseAdminClient) CreateDatabaseOperation

func (c *DatabaseAdminClient) CreateDatabaseOperation(name string) *CreateDatabaseOperation

CreateDatabaseOperation returns a new CreateDatabaseOperation from a given name. The name must be that of a previously created CreateDatabaseOperation, possibly from a different process.

func (*DatabaseAdminClient) DropDatabase

DropDatabase drops (aka deletes) a Cloud Spanner database.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	databasepb "google.golang.org/genproto/googleapis/spanner/admin/database/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &databasepb.DropDatabaseRequest{
		// TODO: Fill request struct fields.
	}
	err = c.DropDatabase(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}
Output:

func (*DatabaseAdminClient) GetDatabase

GetDatabase gets the state of a Cloud Spanner database.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	databasepb "google.golang.org/genproto/googleapis/spanner/admin/database/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &databasepb.GetDatabaseRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetDatabase(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}
Output:

func (*DatabaseAdminClient) GetDatabaseDdl

GetDatabaseDdl returns the schema of a Cloud Spanner database as a list of formatted DDL statements. This method does not show pending schema updates, those may be queried using the [Operations][google.longrunning.Operations] API.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	databasepb "google.golang.org/genproto/googleapis/spanner/admin/database/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &databasepb.GetDatabaseDdlRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetDatabaseDdl(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}
Output:

func (*DatabaseAdminClient) GetIamPolicy

func (c *DatabaseAdminClient) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error)

GetIamPolicy gets the access control policy for a database resource. Returns an empty policy if a database exists but does not have a policy set.

Authorization requires spanner.databases.getIamPolicy permission on [resource][google.iam.v1.GetIamPolicyRequest.resource].

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	iampb "google.golang.org/genproto/googleapis/iam/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &iampb.GetIamPolicyRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetIamPolicy(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}
Output:

func (*DatabaseAdminClient) ListDatabases

ListDatabases lists Cloud Spanner databases.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	"google.golang.org/api/iterator"
	databasepb "google.golang.org/genproto/googleapis/spanner/admin/database/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &databasepb.ListDatabasesRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListDatabases(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}
Output:

func (*DatabaseAdminClient) SetIamPolicy

func (c *DatabaseAdminClient) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error)

SetIamPolicy sets the access control policy on a database resource. Replaces any existing policy.

Authorization requires spanner.databases.setIamPolicy permission on [resource][google.iam.v1.SetIamPolicyRequest.resource].

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	iampb "google.golang.org/genproto/googleapis/iam/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &iampb.SetIamPolicyRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.SetIamPolicy(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}
Output:

func (*DatabaseAdminClient) TestIamPermissions

TestIamPermissions returns permissions that the caller has on the specified database resource.

Attempting this RPC on a non-existent Cloud Spanner database will result in a NOT_FOUND error if the user has spanner.databases.list permission on the containing Cloud Spanner instance. Otherwise returns an empty set of permissions.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	iampb "google.golang.org/genproto/googleapis/iam/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &iampb.TestIamPermissionsRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.TestIamPermissions(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}
Output:

func (*DatabaseAdminClient) UpdateDatabaseDdl

UpdateDatabaseDdl updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc. The returned [long-running operation][google.longrunning.Operation] will have a name of the format <database_name>/operations/<operation_id> and can be used to track execution of the schema change(s). The [metadata][google.longrunning.Operation.metadata] field type is [UpdateDatabaseDdlMetadata][google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata]. The operation has no response.

Example
package main

import (
	"context"

	database "cloud.google.com/go/spanner/admin/database/apiv1"
	databasepb "google.golang.org/genproto/googleapis/spanner/admin/database/v1"
)

func main() {
	ctx := context.Background()
	c, err := database.NewDatabaseAdminClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &databasepb.UpdateDatabaseDdlRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.UpdateDatabaseDdl(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	err = op.Wait(ctx)
	// TODO: Handle error.
}
Output:

func (*DatabaseAdminClient) UpdateDatabaseDdlOperation

func (c *DatabaseAdminClient) UpdateDatabaseDdlOperation(name string) *UpdateDatabaseDdlOperation

UpdateDatabaseDdlOperation returns a new UpdateDatabaseDdlOperation from a given name. The name must be that of a previously created UpdateDatabaseDdlOperation, possibly from a different process.

type DatabaseIterator

type DatabaseIterator struct {

	// 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 []*databasepb.Database, nextPageToken string, err error)
	// contains filtered or unexported fields
}

DatabaseIterator manages a stream of *databasepb.Database.

func (*DatabaseIterator) Next

func (it *DatabaseIterator) Next() (*databasepb.Database, error)

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 (*DatabaseIterator) PageInfo

func (it *DatabaseIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

type UpdateDatabaseDdlOperation

type UpdateDatabaseDdlOperation struct {
	// contains filtered or unexported fields
}

UpdateDatabaseDdlOperation manages a long-running operation from UpdateDatabaseDdl.

func (*UpdateDatabaseDdlOperation) Done

func (op *UpdateDatabaseDdlOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*UpdateDatabaseDdlOperation) Metadata

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 (*UpdateDatabaseDdlOperation) Name

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 (*UpdateDatabaseDdlOperation) Poll

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.

func (*UpdateDatabaseDdlOperation) Wait

Wait blocks until the long-running operation is completed, returning any error encountered.

See documentation of Poll for error-handling information.

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