Object
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io
:
ReadableCSVChannel
Represents a ReadableCSVChannel which could be used to read records from CSV file.
Constructor
Constructs a CSV channel from a CharacterChannel to read/write CSV records.
__init
(ReadableCharacterChannel byteChannel, Separator fs, int nHeaders)
- byteChannel ReadableCharacterChannel
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The CharacterChannel, which will represent the content in the CSV file
- fs Separator <(,| |:|string)> ,
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Field separator, which will separate between the records in the CSV file
- nHeaders int 0
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Number of headers, which should be skipped prior to reading records
Methods
Indicates whether there's another record, which could be read.
boolean hasNext = readableCSVChannel.hasNext();
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Return Type
(boolean) True if there's a record
Gets the next record from the CSV file.
string[]|io:Error? record = readableCSVChannel.getNext();
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Return Type
(string[] | Error?) List of fields in the CSV or else an
io:Error
Closes a given CSVChannel
.
io:Error? err = readableCSVChannel.close();
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Return Type
(Error?) io:Error
if any error occurred
Returns a table, which corresponds to the CSV records.
var tblResult1 = readableCSVChannel.getTable(Employee);
var tblResult2 = readableCSVChannel.getTable(Employee, ["id", "name"]);
Parameters
- structType typedesc
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The object in which the CSV records should be deserialized
- fieldNames string[] (default [])
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The names of the fields used as the (composite)key of the table
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Return Type
(table | Error) Table, which represents the CSV records or else an
io:Error