fdb = require('fdboost')() module.exports = (query, options = {}) -> keyFrag = @keyFrag serializer = @serializer class Finder extends fdb.RangeReader finalize: (err, callback) -> if (serializer.state.length > 0) @emit('data', serializer.state) # serializer.state = [] else if (serializer.cursor isnt null) serializer.cursor.reset(true) @emit('data', serializer.cursor) callback(err) ###* * Iterate over array results * @override * @param {LazyIterator} iterator LazyIterator instance. * @param {iterateCallback} callback Callback. * @fires RangeReader#data * @return {undefined} ### toArray: (iterator, callback) -> iterator.toArray (err, arr) => cb = (records) => @finalize(err, callback) serializer.deserialize(@directory, arr, cb) return ###* * Iterate over batch results * @override * @param {LazyIterator} iterator LazyIterator instance. * @param {iterateCallback} callback Callback. * @fires RangeReader#data * @return {undefined} ### forEachBatch: (iterator, callback) -> complete = (err) => @finalize(err, callback) func = (arr, next) => @parse(arr) next() return iterator.forEachBatch(func, complete) ###* * Iterate over key-value pair results * @override * @param {LazyIterator} iterator LazyIterator instance. * @param {iterateCallback} callback Callback. * @fires RangeReader#data * @return {undefined} ### forEach: (iterator, callback) -> complete = (err) => @finalize(err, callback) func = (kv, next) => @parse(kv) next() return iterator.forEach(func, complete) ###* * Execute the finder using an iterator type * @override * @param {object} tr Optional transaction. * @param {string} iteratorType batch|each|array. * @fires RangeReader#error * @fires RangeReader#continue * @fires RangeReader#end * @return {undefined} ### execute: (tr, iteratorType) -> callback = (err, @directory) => if (err) @emit('error', err) else @begin = @directory super(tr, iteratorType) keyFrag.resolveDirectory(query, callback) new Finder(options)