Package org.vitrivr.cottontail.grpc

Class TXNGrpc.TXNBlockingStub

java.lang.Object

io.grpc.stub.AbstractStub<S>

io.grpc.stub.AbstractBlockingStub<TXNGrpc.TXNBlockingStub>

org.vitrivr.cottontail.grpc.TXNGrpc.TXNBlockingStub

Enclosing class:

TXNGrpc

public static final class TXNGrpc.TXNBlockingStub
extends io.grpc.stub.AbstractBlockingStub<TXNGrpc.TXNBlockingStub>

A stub to allow clients to do synchronous rpc calls to service TXN.

 Endpoint for transaction management.
 

Nested Class Summary

Nested classes/interfaces inherited from class io.grpc.stub.AbstractStub

io.grpc.stub.AbstractStub.StubFactory<T extends io.grpc.stub.AbstractStub<T>>

Constructor Summary

Constructors

Modifier	Constructor	Description
private	TXNBlockingStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions)

Method Summary

Modifier and Type	Method	Description
CottontailGrpc.ResponseMetadata	begin(CottontailGrpc.BeginTransaction request)	Starts a new transaction.
protected TXNGrpc.TXNBlockingStub	build(io.grpc.Channel channel, io.grpc.CallOptions callOptions)
com.google.protobuf.Empty	commit(CottontailGrpc.RequestMetadata request)	Performs a commit on a transaction.
com.google.protobuf.Empty	kill(CottontailGrpc.RequestMetadata request)	Kills and performs a rollback on an ongoing transaction.
Iterator<CottontailGrpc.QueryResponseMessage>	listLocks(com.google.protobuf.Empty request)	Lists all active locks on database objects.
Iterator<CottontailGrpc.QueryResponseMessage>	listTransactions(com.google.protobuf.Empty request)	Lists all active transactions.
com.google.protobuf.Empty	rollback(CottontailGrpc.RequestMetadata request)	Performs a rollback on a transaction and aborts it.

Methods inherited from class io.grpc.stub.AbstractBlockingStub

newStub, newStub

Methods inherited from class io.grpc.stub.AbstractStub

getCallOptions, getChannel, withCallCredentials, withChannel, withCompression, withDeadline, withDeadlineAfter, withExecutor, withInterceptors, withMaxInboundMessageSize, withMaxOutboundMessageSize, withOption, withWaitForReady

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TXNBlockingStub

private TXNBlockingStub(io.grpc.Channel channel,
 io.grpc.CallOptions callOptions)

Method Details

build

protected TXNGrpc.TXNBlockingStub build(io.grpc.Channel channel,
 io.grpc.CallOptions callOptions)

Specified by:

build in class io.grpc.stub.AbstractStub<TXNGrpc.TXNBlockingStub>

begin

public CottontailGrpc.ResponseMetadata begin(CottontailGrpc.BeginTransaction request)

 Starts a new transaction. 
 

commit

public com.google.protobuf.Empty commit(CottontailGrpc.RequestMetadata request)

 Performs a commit on a transaction. This method blocks if a query is currently executed. 
 

rollback

public com.google.protobuf.Empty rollback(CottontailGrpc.RequestMetadata request)

 Performs a rollback on a transaction and aborts it. This method blocks if a query is currently executed. 
 

kill

public com.google.protobuf.Empty kill(CottontailGrpc.RequestMetadata request)

 Kills and performs a rollback on an ongoing transaction. This method can even be used when a query is being executed.
 

listTransactions

public Iterator<CottontailGrpc.QueryResponseMessage> listTransactions(com.google.protobuf.Empty request)

 Lists all active transactions. 
 

listLocks

public Iterator<CottontailGrpc.QueryResponseMessage> listLocks(com.google.protobuf.Empty request)

 Lists all active locks on database objects.