interface BlockchainIndexReader (source)
Reader of a blockchain index.
Allows to query for fields for exact or range matches.
chainHeadTotalDifficulty |
Retrieves the largest total difficulty value of the chain, if it has been computed. abstract fun chainHeadTotalDifficulty(): UInt256? |
findBy |
Find exact matches for a field. abstract fun findBy(field: BlockHeaderFields, value: Bytes): List<Hash>abstract fun findBy(field: BlockHeaderFields, value: Long): List<Hash>abstract fun findBy(field: BlockHeaderFields, value: Gas): List<Hash>abstract fun findBy(field: BlockHeaderFields, value: UInt256): List<Hash>abstract fun findBy(field: BlockHeaderFields, value: Address): List<Hash>abstract fun findBy(field: BlockHeaderFields, value: Hash): List<Hash>abstract fun findBy(field: TransactionReceiptFields, value: Bytes): List<Hash>abstract fun findBy(field: TransactionReceiptFields, value: Int): List<Hash>abstract fun findBy(field: TransactionReceiptFields, value: Long): List<Hash>abstract fun findBy(field: TransactionReceiptFields, value: Gas): List<Hash>abstract fun findBy(field: TransactionReceiptFields, value: UInt256): List<Hash>abstract fun findBy(field: TransactionReceiptFields, value: Address): List<Hash>abstract fun findBy(field: TransactionReceiptFields, value: Hash): List<Hash> |
findByBlockHashAndIndex |
Find a transaction request by block hash and index. abstract fun findByBlockHashAndIndex(blockHash: Bytes, index: Int): Hash? |
findByHashOrNumber |
Finds hashes of blocks by hash or number. abstract fun findByHashOrNumber(hashOrNumber: Bytes): List<Hash> |
findByLargest |
Find the hash of the block header with the largest value of a specific block header field abstract fun findByLargest(field: BlockHeaderFields): Hash?abstract fun findByLargest(field: TransactionReceiptFields): Hash? |
findInRange |
Find a value in a range. abstract fun findInRange(field: BlockHeaderFields, minValue: UInt256, maxValue: UInt256): List<Hash>abstract fun findInRange(field: TransactionReceiptFields, minValue: UInt256, maxValue: UInt256): List<Hash> |
findLargestTotalDifficulty |
Find the hash of the block header with the largest total difficulty. abstract fun findLargestTotalDifficulty(): Hash? |
totalDifficulty |
Retrieves the total difficulty of the block header, if it has been computed. abstract fun totalDifficulty(hash: Bytes): UInt256? |
BlockchainIndex |
A Lucene-backed indexer capable of indexing blocks and block headers. class BlockchainIndex : BlockchainIndexWriter, BlockchainIndexReader |