Module com.hedera.hashgraph.sdk

Package com.hedera.hashgraph.sdk

Class ContractInfoQuery

java.lang.Object

com.hedera.hashgraph.sdk.Executable<ContractInfoQuery,Query,Response,ContractInfo>

com.hedera.hashgraph.sdk.Query<ContractInfo,ContractInfoQuery>

com.hedera.hashgraph.sdk.ContractInfoQuery

public final class ContractInfoQuery
extends Query<ContractInfo,ContractInfoQuery>

Get information about a smart contract instance.

This includes the account that it uses, the file containing its bytecode, and the time when it will expire.

Nested Class Summary

Nested classes/interfaces inherited from class com.hedera.hashgraph.sdk.Executable

Executable.GrpcRequest

Field Summary

Fields inherited from class com.hedera.hashgraph.sdk.Query

paymentTransactionId, paymentTransactions

Fields inherited from class com.hedera.hashgraph.sdk.Executable

attemptedAllNodes, blockingUnaryCall, grpcDeadline, logger, maxAttempts, maxBackoff, minBackoff, nodeAccountIds, nodes, random, RST_STREAM

Constructor Summary

Constructors

Constructor	Description
ContractInfoQuery()	Constructor.

Method Summary

Modifier and Type	Method	Description
ContractId	getContractId()	Extract the contract id.
CompletableFuture<Hbar>	getCostAsync(Client client)	Fetch the expected cost asynchronously.
(package private) io.grpc.MethodDescriptor<Query,Response>	getMethodDescriptor()	Called to direct the invocation of the query to the appropriate gRPC service.
(package private) QueryHeader	mapRequestHeader(Query request)	The derived class should access its request header and return.
(package private) ContractInfo	mapResponse(Response response, AccountId nodeId, Query request)	Called after receiving the query response from Hedera.
(package private) ResponseHeader	mapResponseHeader(Response response)	The derived class should access its response header and return.
(package private) void	onMakeRequest(Query.Builder queryBuilder, QueryHeader header)	Called in Query.makeRequest() just before the query is built.
ContractInfoQuery	setContractId(ContractId contractId)	Sets the contract ID for which information is requested.
(package private) void	validateChecksums(Client client)	Validate the checksums.

Methods inherited from class com.hedera.hashgraph.sdk.Query

getCost, getCost, getCostAsync, getCostAsync, getCostAsync, getCostAsync, getCostAsync, getOperatorFromClient, getPaymentTransaction, getPaymentTransactionId, getTransactionIdInternal, isPaymentRequired, makeRequest, mapResponseStatus, onExecute, onExecuteAsync, setMaxQueryPayment, setPaymentTransactionId, setQueryPayment, toString

Methods inherited from class com.hedera.hashgraph.sdk.Executable

advanceRequest, checkNodeAccountIds, execute, execute, executeAsync, executeAsync, executeAsync, executeAsync, executeAsync, executeAsync, getExecutionState, getGrpcRequest, getMaxAttempts, getMaxBackoff, getMaxRetry, getMinBackoff, getNodeAccountIds, getNodeForExecute, grpcDeadline, isBatchedAndNotBatchTransaction, logTransaction, mergeFromClient, setGrpcDeadline, setLogger, setMaxAttempts, setMaxBackoff, setMaxRetry, setMinBackoff, setNodeAccountIds, setNodesFromNodeAccountIds, setRequestListener, setResponseListener, shouldRetryExceptionally

Methods inherited from class java.lang.Object

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

Constructor Details

ContractInfoQuery

public ContractInfoQuery()

Constructor.

Method Details

getContractId

@Nullable
public ContractId getContractId()

Extract the contract id.

Returns:

the contract id

setContractId

public ContractInfoQuery setContractId(ContractId contractId)

Sets the contract ID for which information is requested.

Parameters:

contractId - The ContractId to be set

Returns:

this

getCostAsync

public CompletableFuture<Hbar> getCostAsync(Client client)

Description copied from class: Query

Fetch the expected cost asynchronously.

Overrides:

getCostAsync in class Query<ContractInfo,ContractInfoQuery>

Parameters:

client - the client

Returns:

Future result of the cost in hbar

validateChecksums

void validateChecksums(Client client)
                throws BadEntityIdException

Description copied from class: Query

Validate the checksums.

Specified by:

validateChecksums in class Query<ContractInfo,ContractInfoQuery>

Throws:

BadEntityIdException

onMakeRequest

void onMakeRequest(Query.Builder queryBuilder,
 QueryHeader header)

Description copied from class: Query

Called in Query.makeRequest() just before the query is built. The intent is for the derived class to assign their data variant to the query.

Specified by:

onMakeRequest in class Query<ContractInfo,ContractInfoQuery>

mapResponseHeader

ResponseHeader mapResponseHeader(Response response)

Description copied from class: Query

The derived class should access its response header and return.

Specified by:

mapResponseHeader in class Query<ContractInfo,ContractInfoQuery>

mapRequestHeader

QueryHeader mapRequestHeader(Query request)

Description copied from class: Query

The derived class should access its request header and return.

Specified by:

mapRequestHeader in class Query<ContractInfo,ContractInfoQuery>

mapResponse

ContractInfo mapResponse(Response response,
 AccountId nodeId,
 Query request)

Description copied from class: Executable

Called after receiving the query response from Hedera. The derived class should map into its output type.

Specified by:

mapResponse in class Executable<ContractInfoQuery,Query,Response,ContractInfo>

getMethodDescriptor

io.grpc.MethodDescriptor<Query,Response> getMethodDescriptor()

Description copied from class: Executable

Called to direct the invocation of the query to the appropriate gRPC service.

Specified by:

getMethodDescriptor in class Executable<ContractInfoQuery,Query,Response,ContractInfo>