@oceanprotocol/keeper-contracts

# contract: HashLists Documentation: ``` @title HashLists contract @author Ocean Protocol Team @dev Hash lists contract is a sample list contract in which uses HashListLibrary.sol in order to store, retrieve, remove, and update bytes32 values in hash lists. This is a reference implementation for IList interface. It is used for whitelisting condition. Any entity can have its own implementation of the interface in which could be used for the same condition. ``` ## Variables ### internal lists ## Functions ### public initialize Documentation: ``` @dev HashLists Initializer @param _owner The owner of the hash list Runs only upon contract creation. ``` Parameters: * address _owner ### public hash Documentation: ``` @dev hash ethereum accounts @param account Ethereum address @return bytes32 hash of the account ``` Parameters: * address account ### external add Documentation: ``` @dev put an array of elements without indexing this meant to save gas in case of large arrays @param values is an array of elements value @return true if values are added successfully ``` Parameters: * bytes32[] values ### external add Documentation: ``` @dev add indexes an element then adds it to a list @param value is a bytes32 value @return true if value is added successfully ``` Parameters: * bytes32 value ### external update Documentation: ``` @dev update the value with a new value and maintain indices @param oldValue is an element value in a list @param newValue new value @return true if value is updated successfully ``` Parameters: * bytes32 oldValue * bytes32 newValue ### external index Documentation: ``` @dev index is used to map each element value to its index on the list @param from index is where to 'from' indexing in the list @param to index is where to stop indexing @return true if the sub list is indexed ``` Parameters: * uint256 from * uint256 to ### external has Documentation: ``` @dev has checks whether a value is exist @param id the list identifier (the hash of list owner's address) @param value is element value in list @return true if the value exists ``` Parameters: * bytes32 id * bytes32 value ### external has Documentation: ``` @dev has checks whether a value is exist @param value is element value in list @return true if the value exists ``` Parameters: * bytes32 value ### external remove Documentation: ``` @dev remove value from a list, updates indices, and list size @param value is an element value in a list @return true if value is removed successfully ``` Parameters: * bytes32 value ### external get Documentation: ``` @dev has value by index @param id the list identifier (the hash of list owner's address) @param _index is where is value is stored in the list @return the value if exists ``` Parameters: * bytes32 id * uint256 _index ### external size Documentation: ``` @dev size gets the list size @param id the list identifier (the hash of list owner's address) @return total length of the list ``` Parameters: * bytes32 id ### external all Documentation: ``` @dev all returns all list elements @param id the list identifier (the hash of list owner's address) @return all list elements ``` Parameters: * bytes32 id ### external indexOf Documentation: ``` @dev indexOf gets the index of a value in a list @param id the list identifier (the hash of list owner's address) @param value is element value in list @return value index in list ``` Parameters: * bytes32 id * bytes32 value ### external ownedBy Documentation: ``` @dev ownedBy gets the list owner @param id the list identifier (the hash of list owner's address) @return list owner ``` Parameters: * bytes32 id ### external isIndexed Documentation: ``` @dev isIndexed checks if the list is indexed @param id the list identifier (the hash of list owner's address) @return true if the list is indexed ``` Parameters: * bytes32 id