net.corda.core.transactions

Class TraversableTransaction

net.corda.core.transactions.BaseTransaction

net.corda.core.transactions.CoreTransaction

net.corda.core.transactions.TraversableTransaction

All Implemented Interfaces:

NamedByHash

Direct Known Subclasses:

FilteredTransaction, WireTransaction

public class TraversableTransaction
extends CoreTransaction

Implemented by class WireTransaction and class FilteredTransaction. A TraversableTransaction allows you to iterate over the flattened components of the underlying transaction structure, taking into account that some may be missing in the case of this representing a "torn" transaction. Please see the user guide section "Transaction tear-offs" to learn more about this feature.

See Also:

class WireTransaction, class FilteredTransaction

Constructor Detail

TraversableTransaction

public TraversableTransaction(@NotNull
                              java.util.List<? extends net.corda.core.transactions.ComponentGroup> componentGroups,
                              @NotNull
                              DigestService digestService)

Implemented by class WireTransaction and class FilteredTransaction. A TraversableTransaction allows you to iterate over the flattened components of the underlying transaction structure, taking into account that some may be missing in the case of this representing a "torn" transaction. Please see the user guide section "Transaction tear-offs" to learn more about this feature.

See Also:

class WireTransaction, class FilteredTransaction

TraversableTransaction

public TraversableTransaction(@NotNull
                              java.util.List<? extends net.corda.core.transactions.ComponentGroup> componentGroups)

Old version of class TraversableTransaction constructor for ABI compatibility.

See Also:

class TraversableTransaction

Method Detail

getAttachments

@NotNull
public java.util.List<net.corda.core.crypto.SecureHash> getAttachments()

Hashes of the ZIP/JAR files that are needed to interpret the contents of this wire transaction.

getInputs

@NotNull
public java.util.List<net.corda.core.contracts.StateRef> getInputs()

Pointers to the input states on the ledger, identified by (tx identity hash, output index).

getReferences

@NotNull
public java.util.List<net.corda.core.contracts.StateRef> getReferences()

Pointers to reference states, identified by (tx identity hash, output index).

getOutputs

@NotNull
public java.util.List<net.corda.core.contracts.TransactionState> getOutputs()

Ordered list of states defined by this transaction, along with the associated notaries.

getCommands

@NotNull
public java.util.List<net.corda.core.contracts.Command> getCommands()

Ordered list of (interface CommandData, PublicKey) pairs that instruct the contracts what to do.

See Also:

interface CommandData, PublicKey

getNotary

@Nullable
public Party getNotary()

If present, the notary for this transaction. If absent then the transaction is not notarised at all. This is intended for issuance/genesis transactions that don't consume any other states and thus can't double spend anything.

getTimeWindow

@Nullable
public TimeWindow getTimeWindow()

getNetworkParametersHash

@Nullable
public SecureHash getNetworkParametersHash()

Hash of the network parameters that were in force when the transaction was notarised. Null means, that the transaction was created on older version of Corda (before 4), resolution will default to initial parameters.

getAvailableComponentGroups

@NotNull
public java.util.List<java.util.List> getAvailableComponentGroups()

Returns a list of all the component groups that are present in the transaction, excluding the privacySalt, in the following order (which is the same with the order in enum ComponentGroupEnum:

• list of each input that is present

• list of each output that is present

• list of each command that is present

• list of each attachment that is present

• The notary class Party, if present (list with one element)

• The time-window of the transaction, if present (list with one element)

• list of each reference input that is present

• network parameters hash if present

See Also:

enum ComponentGroupEnum, class Party

getComponentGroups

@NotNull
public java.util.List<net.corda.core.transactions.ComponentGroup> getComponentGroups()

getDigestService

@NotNull
public DigestService getDigestService()