All Classes

Class	Description
AccessList
AccessList.AccessListItem	Associates an address with a collection of storage key within that account's storage tree.
Address	Represents a 160-bit (20 bytes) Ethereum address.
Assert	Utilities for performing runtime checks.
Block	Where even to begin? The block in blockchain, the one that holds transactions.
Blockchain
BlockHeader
Blocks	A database that enables retrieving blocks by hash.
BlockValidity	The block validity is a wrapper for BlockValidityStatus which includes additional information if the block is invalid.
BlockValidityStatus	The validity status of a block, which is either valid (BlockValidityStatus.VAL_VALID), or another status indicating why the block is invalid.
BloomFilter	A bloom filter associated with one or multiple LogEntry.
BranchStep	See PatriciaNode.step(NodeStore, Nibbles).
ByteUtils	Utilities dealing with byte values, the byte-array encoding of larger numbers, as well as byte arrays in general.
Config	Configurable values.
Context	A holder for values that may change during execution, but we don't want to be constantly passing up and down the call stack.
Crypto	Cryptography-related utilities and constants.
Difficulty
EthereumVersion	Enumeration of Ethereum's "versions": the hard forks that were rolled out during the chain's history.
EthKeyPair	A SECP-256k1 key pair that can be used to sign transactions.
Hash	Represents a 256-bit (32 bytes) Keccak hash.
Hashing	Utilities to calculate hash values.
IllegalRLPAccess	Indicates an illegal access in an RLP object: trying to access a sequence when the object represents a byte array or encoding, trying to access a byte array when the object represents a sequence or encoding, or trying to access a byte or sub-sequence item that is out of bounds.
IllegalSignature	Indicates that a signature is invalid: some of its parameters do not satisfy the signature validity constraints.
LogEntry	A log entry generated during contract execution.
LogTopic	Represents a 256-bit (32 bytes) log topic.
MapNodeStore	Key-value store implementation that stores key-values in an in-memory map (dictionary).
MemPatriciaBranchNode	A branch node in the in-memory patricia tree.
MemPatriciaExtensionNode	An extension node in the in-memory patricia tree.
MerkleProof	A proof that a key-value pair belongs to a tree.
MerkleRoot	A Hash that is marked as being a Merkle root.
MissingNode	Thrown when a node is missing from a store backing a patricia tree, i.e.
Natural	Represents an arbitrary-length natural (positive) integer.
Nibbles	Represent a sequence of nibbles (half-bytes, 4-bit values), which are used as key fragments in Patricia tree lookups.
NodeStore	Interface for a node store underlying a modified Merkle patricia tree.
Nullable	Indicates that the parameter can take a null value.
Pair<A,B>	Simple object pair.
PatriciaBranchNode	Abstract base classes for branch nodes.
PatriciaExtensionNode	A an extension node in the patricia tree represents a shared sequence of nibbles between multiples keys (a "key fragment").
PatriciaLeafNode	A leaf in the patrica tree, which store the suffix of the key and its associated value.
PatriciaNode	Abstract base class for Modified Merkle Patricia Tree nodes, to be compatible with PatriciaTree.
PatriciaTree	Implementation of the Modified Merkle Patricia Tree, as per appendix D of the yellowpaper.
ProofOfWork
Randomness	Utilities related to random number generation.
Retained	Indicates that the parameter is a mutable object, and that it is potentially stored somewhere as a result of calling the function, and that care should thus be taken when mutating that object.
RLP	An object that can be encoded in RLP format, or decoded from a byte array in RLP format.
RLPLayoutable	Implemented by object that have an RLP layout, i.e.
RLPParsing	Utilities to help parse protocol objects from a RLP layout.
RLPParsingException	Signals a problem while parsing some data from an RLP layout.
Signature	An ECDSA signature using the SECP-256k1 curve.
SignatureUtils	Signature-related utilities that don't obviously belong in other classes.
StorageKey	Represents a 256-bit (32 bytes) Ethereum storage key within an account's storage tree.
StorePatriciaBranchNode	A branch node usable for store-backed implementation, or for nodes in abridged form.
StorePatriciaExtensionNode	An extension node usable for store-backed implementation, or for nodes in abridged form.
Transaction	A "normalized transaction", as defined in EIP-1559 (part of the London hard fork).
TransactionEnvelopeType	Holds constants corresponding to the identifier for the various EIP-2718 envelope types (EIP-2718 only introduces the envelope types mechanisms, the envelope types themselves are introduced in other EIPs).
TransactionFormat	List the different possible kind of transaction that can be sent.
TreeNodeStore	Node store implementation for the in-memory tree.
UnsignedTransaction	A "normalized transaction", as defined in EIP-1559 (part of the London hard fork), which does not include a signature.
Utils	Misc general-purpose utilities that do not have a place in other utility classes.
Utils.ThrowingFunction<T,R>	Similar to Function, but allowed to throw exceptions.
Wrapper	Indicate that the class is a wrapper over a single data field, whose sole purpose is to establish that the value of the field satisfies some properties.