water.parser

Class PreviewParseWriter

java.lang.Object

water.Iced

water.parser.PreviewParseWriter

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, Freezable

public class PreviewParseWriter
extends Iced

Class implementing ParseWriter, on behalf ParseSetup to examine the contents of a file for guess the column types.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String[][]	_data
protected int	_invalidLines
protected int	_ncols
protected int	_nlines
protected static int	MAX_PREVIEW_COLS
protected static int	MAX_PREVIEW_LINES

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PreviewParseWriter()
protected	PreviewParseWriter(int ncols)

Method Summary

Methods

Modifier and Type	Method and Description
void	addInvalidCol(int colIdx)
void	addNumCol(int colIdx, double d)
void	addNumCol(int colIdx, long number, int exp)
void	addStrCol(int colIdx, ValueString str)
java.lang.String[][]	guessNAStrings(byte[] types)
byte[]	guessTypes()
void	invalidLine(java.lang.String err)
boolean	isString(int colIdx)
void	newLine()
void	rollbackLine()
void	setColumnNames(java.lang.String[] names)
static PreviewParseWriter	unifyColumnPreviews(PreviewParseWriter prevA, PreviewParseWriter prevB)

Methods inherited from class water.Iced

clone, frozenType, read_impl, read, readExternal, readJSON_impl, readJSON, toJsonString, write_impl, write, writeExternal, writeHTML_impl, writeHTML, writeJSON_impl, writeJSON

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface water.Freezable

clone, frozenType, read_impl, read, readJSON_impl, readJSON, write_impl, write, writeHTML_impl, writeHTML, writeJSON_impl, writeJSON

Field Detail

MAX_PREVIEW_COLS

protected static final int MAX_PREVIEW_COLS

See Also:

Constant Field Values

MAX_PREVIEW_LINES

protected static final int MAX_PREVIEW_LINES

See Also:

Constant Field Values

_nlines

protected int _nlines

_ncols

protected int _ncols

_invalidLines

protected int _invalidLines

_data

protected java.lang.String[][] _data

Constructor Detail

PreviewParseWriter

protected PreviewParseWriter()

PreviewParseWriter

protected PreviewParseWriter(int ncols)

Method Detail

setColumnNames

public void setColumnNames(java.lang.String[] names)

newLine

public void newLine()

isString

public boolean isString(int colIdx)

addNumCol

public void addNumCol(int colIdx,
             long number,
             int exp)

addNumCol

public void addNumCol(int colIdx,
             double d)

addInvalidCol

public void addInvalidCol(int colIdx)

addStrCol

public void addStrCol(int colIdx,
             ValueString str)

rollbackLine

public void rollbackLine()

invalidLine

public void invalidLine(java.lang.String err)

guessTypes

public byte[] guessTypes()

guessNAStrings

public java.lang.String[][] guessNAStrings(byte[] types)

unifyColumnPreviews

public static PreviewParseWriter unifyColumnPreviews(PreviewParseWriter prevA,
                                     PreviewParseWriter prevB)