net.corda.core.contracts

Class AutomaticHashConstraint

net.corda.core.contracts.AutomaticHashConstraint

All Implemented Interfaces:

AttachmentConstraint

public class AutomaticHashConstraint
implements AttachmentConstraint

This interface AttachmentConstraint is a convenience class that will be automatically resolved to a class HashAttachmentConstraint. The resolution occurs in TransactionBuilder.toWireTransaction and uses the TransactionState.contract value to find a corresponding loaded Cordapp that contains such a contract, and then uses that Cordapp as the interface Attachment.

If, for any reason, this class is not automatically resolved the default implementation is to fail, because the intent of this class is that it should be replaced by a correct class HashAttachmentConstraint and verify against an actual interface Attachment.

See Also:

interface AttachmentConstraint, class HashAttachmentConstraint, TransactionBuilder.toWireTransaction, Cordapp, Cordapp, interface Attachment, class HashAttachmentConstraint, interface Attachment

Field Summary

Fields

Modifier and Type	Field and Description
static AutomaticHashConstraint	INSTANCE This interface AttachmentConstraint is a convenience class that will be automatically resolved to a class HashAttachmentConstraint. The resolution occurs in TransactionBuilder.toWireTransaction and uses the TransactionState.contract value to find a corresponding loaded Cordapp that contains such a contract, and then uses that Cordapp as the interface Attachment.

Method Summary

Modifier and Type	Method and Description
boolean	isSatisfiedBy(Attachment attachment) Returns whether the given contract attachment can be used with the interface ContractState associated with this constraint object.

Methods inherited from interface net.corda.core.contracts.AttachmentConstraint

isSatisfiedBy

Field Detail

INSTANCE

public static AutomaticHashConstraint INSTANCE

This interface AttachmentConstraint is a convenience class that will be automatically resolved to a class HashAttachmentConstraint. The resolution occurs in TransactionBuilder.toWireTransaction and uses the TransactionState.contract value to find a corresponding loaded Cordapp that contains such a contract, and then uses that Cordapp as the interface Attachment.

If, for any reason, this class is not automatically resolved the default implementation is to fail, because the intent of this class is that it should be replaced by a correct class HashAttachmentConstraint and verify against an actual interface Attachment.

See Also:

interface AttachmentConstraint, class HashAttachmentConstraint, TransactionBuilder.toWireTransaction, Cordapp, Cordapp, interface Attachment, class HashAttachmentConstraint, interface Attachment

Method Detail

isSatisfiedBy

public boolean isSatisfiedBy(Attachment attachment)

Returns whether the given contract attachment can be used with the interface ContractState associated with this constraint object.

See Also:

interface ContractState