java.lang.Object
- adams.data.io.input.FastCsvSpreadSheetReader.ChunkReader

All Implemented Interfaces:

Serializable

Enclosing class:

FastCsvSpreadSheetReader
```
public static class FastCsvSpreadSheetReader.ChunkReader
extends Object
implements Serializable
```
Reads CSV files chunk by chunk.

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected int`	`m_ChunkSize`	the chunk size to use.
`protected String`	`m_CustomColumnHeaders`	the comma-separated list of column header names.
`protected int`	`m_FirstRow`	the first row to retrieve (1-based).
`protected SpreadSheet`	`m_Header`	the header.
`protected BaseRegExp`	`m_MissingValue`	the missing value.
`protected boolean`	`m_NoHeader`	whether the file has a header or not.
`protected boolean[]`	`m_NumericCols`	the numeric columns.
`protected Range`	`m_NumericColumns`	the columns to treat as numeric.
`protected int`	`m_NumRows`	the number of rows to retrieve (less than 1 = unlimited).
`protected FastCsvSpreadSheetReader`	`m_Owner`	the owning reader.
`protected String`	`m_QuoteCharacter`	the quote character.
`protected BufferedReader`	`m_Reader`	the reader in use.
`protected int`	`m_RowCount`	the rows read so far.
`protected String`	`m_Separator`	the column separator.
`protected boolean`	`m_Trim`	whether to trim the cell content.

Constructor Summary

Constructors
Constructor Description

ChunkReader(FastCsvSpreadSheetReader owner)
Initializes the low-level reader.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`close()`	Closes the reader.
`boolean`	`hasNext()`	Returns whether there is more data to be read.
`SpreadSheet`	`next()`	Reads the next chunk.
`SpreadSheet`	`read(Reader r)`	Reads the spreadsheet content from the specified reader.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - m_Owner
```
protected FastCsvSpreadSheetReader m_Owner
```
    the owning reader.
  - m_Reader
```
protected BufferedReader m_Reader
```
    the reader in use.
  - m_Header
```
protected SpreadSheet m_Header
```
    the header.
  - m_MissingValue
```
protected BaseRegExp m_MissingValue
```
    the missing value.
  - m_QuoteCharacter
```
protected String m_QuoteCharacter
```
    the quote character.
  - m_Separator
```
protected String m_Separator
```
    the column separator.
  - m_NumericColumns
```
protected Range m_NumericColumns
```
    the columns to treat as numeric.
  - m_NumericCols
```
protected boolean[] m_NumericCols
```
    the numeric columns.
  - m_Trim
```
protected boolean m_Trim
```
    whether to trim the cell content.
  - m_NoHeader
```
protected boolean m_NoHeader
```
    whether the file has a header or not.
  - m_CustomColumnHeaders
```
protected String m_CustomColumnHeaders
```
    the comma-separated list of column header names.
  - m_FirstRow
```
protected int m_FirstRow
```
    the first row to retrieve (1-based).
  - m_NumRows
```
protected int m_NumRows
```
    the number of rows to retrieve (less than 1 = unlimited).
  - m_ChunkSize
```
protected int m_ChunkSize
```
    the chunk size to use.
  - m_RowCount
```
protected int m_RowCount
```
    the rows read so far.
- Constructor Detail
  - ChunkReader
```
public ChunkReader(FastCsvSpreadSheetReader owner)
```
    Initializes the low-level reader.
    
    Parameters:
    
    owner - the owning reader
- Method Detail
  - close
```
protected void close()
```
    Closes the reader.
  - hasNext
```
public boolean hasNext()
```
    Returns whether there is more data to be read.
    
    Returns:
    
    true if more data available
  - next
```
public SpreadSheet next()
```
    Reads the next chunk.
    
    Returns:
    
    the next chunk
  - read
```
public SpreadSheet read(Reader r)
```
    Reads the spreadsheet content from the specified reader.
    
    Parameters:
    
    r - the reader to read from
    
    Returns:
    
    the spreadsheet or null in case of an error

Class FastCsvSpreadSheetReader.ChunkReader

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

m_Owner

m_Reader

m_Header

m_MissingValue

m_QuoteCharacter

m_Separator

m_NumericColumns

m_NumericCols

m_Trim

m_NoHeader

m_CustomColumnHeaders

m_FirstRow

m_NumRows

m_ChunkSize

m_RowCount

Constructor Detail

ChunkReader

Method Detail

close

hasNext

next

read