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## cern.colt.matrix.impl
Class AbstractFormatter

    java.lang.Object
      cern.colt.PersistentObject
          cern.colt.matrix.impl.AbstractFormatter

All Implemented Interfaces:
  Cloneable, Serializable

Direct Known Subclasses:
  Formatter, Formatter

public abstract class AbstractFormatter
extends PersistentObject

Abstract base class for flexible, well human readable matrix print formatting. Value type independent. A single cell is formatted via a format string. Columns can be aligned left, centered, right and by decimal point.

A column can be broader than specified by the parameter `minColumnWidth` (because a cell may not fit into that width) but a column is never smaller than `minColumnWidth`. Normally one does not need to specify `minColumnWidth`. Cells in a row are separated by a separator string, similar separators can be set for rows and slices. For more info, see the concrete subclasses.

Version:
  1.0, 09/24/99
See Also:
  Serialized Form

Field Summary
`static String` | `CENTER` The alignment string aligning the cells of a column to its center.
`static String` | `DECIMAL` The alignment string aligning the cells of a column to the decimal point.
`static String` | `DEFAULT_COLUMN_SEPARATOR` The default string separating any two columns from another; currently `" "`.
`static int` | `DEFAULT_MIN_COLUMN_WIDTH` The default minimum number of characters a column may have; currently `1`.
`static String` | `DEFAULT_ROW_SEPARATOR` The default string separating any two rows from another; currently `"\n"`.
`static String` | `DEFAULT_SLICE_SEPARATOR` The default string separating any two slices from another; currently `"\n\n"`.
`static String` | `LEFT` The alignment string aligning the cells of a column to the left.
`static String` | `RIGHT` The alignment string aligning the cells of a column to the right.

Fields inherited from class cern.colt.PersistentObject
`serialVersionUID`

Method Summary
`static void` | `demo1()` Demonstrates how to use this class.
`static void` | `demo2()` Demonstrates how to use this class.
`static void` | `demo3(int size, Object value)` Demonstrates how to use this class.
`void` | `setAlignment(String alignment)` Sets the column alignment (left,center,right,decimal).
`void` | `setColumnSeparator(String columnSeparator)` Sets the string separating any two columns from another.
`void` | `setFormat(String format)` Sets the way a single cell value is to be formatted.
`void` | `setMinColumnWidth(int minColumnWidth)` Sets the minimum number of characters a column may have.
`void` | `setPrintShape(boolean printShape)` Specifies whether a string representation of a matrix is to be preceded with a summary of its shape.
`void` | `setRowSeparator(String rowSeparator)` Sets the string separating any two rows from another.
`void` | `setSliceSeparator(String sliceSeparator)` Sets the string separating any two slices from another.
`static String` | `shape(AbstractMatrix1D matrix)` Returns a short string representation describing the shape of the matrix.
`static String` | `shape(AbstractMatrix2D matrix)` Returns a short string representation describing the shape of the matrix.
`static String` | `shape(AbstractMatrix3D matrix)` Returns a short string representation describing the shape of the matrix.

Methods inherited from class cern.colt.PersistentObject
`clone`

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

Field Detail

### LEFT

    public static final String LEFT

  The alignment string aligning the cells of a column to the left.

  See Also:
    Constant Field Values

### CENTER

    public static final String CENTER

  The alignment string aligning the cells of a column to its center.

  See Also:
    Constant Field Values

### RIGHT

    public static final String RIGHT

  The alignment string aligning the cells of a column to the right.

  See Also:
    Constant Field Values

### DECIMAL

    public static final String DECIMAL

  The alignment string aligning the cells of a column to the decimal point.

  See Also:
    Constant Field Values

### DEFAULT_MIN_COLUMN_WIDTH

    public static final int DEFAULT_MIN_COLUMN_WIDTH

  The default minimum number of characters a column may have; currently `1`.

  See Also:
    Constant Field Values

### DEFAULT_COLUMN_SEPARATOR

    public static final String DEFAULT_COLUMN_SEPARATOR

  The default string separating any two columns from another; currently `" "`.

  See Also:
    Constant Field Values

### DEFAULT_ROW_SEPARATOR

    public static final String DEFAULT_ROW_SEPARATOR

  The default string separating any two rows from another; currently `"\n"`.

  See Also:
    Constant Field Values

### DEFAULT_SLICE_SEPARATOR

    public static final String DEFAULT_SLICE_SEPARATOR

  The default string separating any two slices from another; currently `"\n\n"`.

  See Also:
    Constant Field Values

Method Detail

### demo1

    public static void demo1()

  Demonstrates how to use this class.

### demo2

    public static void demo2()

  Demonstrates how to use this class.

### demo3

    public static void demo3(int size,
                             Object value)

  Demonstrates how to use this class.

### setAlignment

    public void setAlignment(String alignment)

  Sets the column alignment (left,center,right,decimal).

  Parameters:
    `alignment` - the new alignment to be used; must be one of `{LEFT,CENTER,RIGHT,DECIMAL}`.

### setColumnSeparator

    public void setColumnSeparator(String columnSeparator)

  Sets the string separating any two columns from another.

  Parameters:
    `columnSeparator` - the new columnSeparator to be used.

### setFormat

    public void setFormat(String format)

  Sets the way a single cell value is to be formatted.

  Parameters:
    `format` - the new format to be used.

### setMinColumnWidth

    public void setMinColumnWidth(int minColumnWidth)

  Sets the minimum number of characters a column may have.

  Parameters:
    `minColumnWidth` - the new minColumnWidth to be used.

### setPrintShape

    public void setPrintShape(boolean printShape)

  Specifies whether a string representation of a matrix is to be preceded with a summary of its shape.

  Parameters:
    `printShape` - `true` shape summary is printed, otherwise not printed.

### setRowSeparator

    public void setRowSeparator(String rowSeparator)

  Sets the string separating any two rows from another.

  Parameters:
    `rowSeparator` - the new rowSeparator to be used.

### setSliceSeparator

    public void setSliceSeparator(String sliceSeparator)

  Sets the string separating any two slices from another.

  Parameters:
    `sliceSeparator` - the new sliceSeparator to be used.

### shape

    public static String shape(AbstractMatrix1D matrix)

  Returns a short string representation describing the shape of the matrix.

### shape

    public static String shape(AbstractMatrix2D matrix)

  Returns a short string representation describing the shape of the matrix.

### shape

    public static String shape(AbstractMatrix3D matrix)

  Returns a short string representation describing the shape of the matrix.

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