MerkleTreeHashDigestProvider

All Implemented Interfaces:

net.corda.v5.crypto.merkle.MerkleTreeHashDigest
```
public interface MerkleTreeHashDigestProvider
 implements MerkleTreeHashDigest
                    
```
Different use cases require different MerkleTree calculations. MerkleTreeHashDigestProviders let us specify the following:
- Leaf Nonce
- Leaf Hash
- Node Hash calculation methods
- Base Digest Algorithm

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract Array<byte>`	`leafNonce(int index)`	Calculates the nonce for a leaf.
`abstract SecureHash`	`leafHash(int index, @Nullable() Array<byte> nonce, @NotNull() Array<byte> bytes)`	Calculates the hash of a leaf.
`abstract SecureHash`	`nodeHash(int depth, @NotNull() SecureHash left, @NotNull() SecureHash right)`	Calculates the hash of a node.

Methods inherited from class net.corda.v5.crypto.merkle.MerkleTreeHashDigest
getDigestAlgorithmName
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - leafNonce
```
@Nullable() abstract Array<byte> leafNonce(int index)
```
    Calculates the nonce for a leaf.
    
    Parameters:
    
    index - The leaf's index.
  - leafHash
```
@NotNull() abstract SecureHash leafHash(int index, @Nullable() Array<byte> nonce, @NotNull() Array<byte> bytes)
```
    Calculates the hash of a leaf.
    
    Parameters:
    
    index - The leaf's index.
    
    nonce - The leaf's nonce.
    
    bytes - The leaf's content bytes.
  - nodeHash
```
@NotNull() abstract SecureHash nodeHash(int depth, @NotNull() SecureHash left, @NotNull() SecureHash right)
```
    Calculates the hash of a node.
    
    Parameters:
    
    depth - Depth of the node.
    
    left - SecureHash of the left child of the node.
    
    right - SecureHash of the right child of the node.