FastLongFormatter (OREKIT 13.0.3 API)

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java.lang.Object
- org.orekit.utils.formatting.FastLongFormatter

```
public class FastLongFormatter
extends Object
```
Formatter for long integers with low overhead.
This class is intended to be used when formatting large amounts of data with fixed formats like, for example, large ephemeris or measurement files.

Building the formatter is done once, and the formatter appendTo(Appendable, long) or toString(long) methods can be called hundreds of thousands of times, without incurring the overhead that would occur with String.format(). Some tests showed this formatter is about 10 times faster than String.format() with %{width}d format.

Instances of this class are immutable

Since:

13.0.3

Author:

Luc Maisonobe

Constructor Summary

Constructors
Constructor Description

FastLongFormatter(int width, boolean zeroPadding)
Simple constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`appendTo(Appendable appendable, long value)`	Append one formatted value to an `Appendable`.
`int`	`getWidth()`	Get the width.
`boolean`	`hasZeroPadding()`	Check if left padding uses '0' characters.
`String`	`toString(long value)`	Format one value.

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

- Constructor Detail
  - FastLongFormatter
```
public FastLongFormatter(int width,
                         boolean zeroPadding)
```
    Simple constructor.
    This constructor is equivalent to either Formatter integer format %{width}d or %0{width}d
    
    Parameters:
    
    width - number of characters to output
    
    zeroPadding - if true, the result is left padded with '0' until it matches width
- Method Detail
  - getWidth
```
public int getWidth()
```
    Get the width.
    
    Returns:
    
    width
  - hasZeroPadding
```
public boolean hasZeroPadding()
```
    Check if left padding uses '0' characters.
    
    Returns:
    
    true if left padding uses '0' characters
  - appendTo
```
public void appendTo(Appendable appendable,
                     long value)
              throws IOException
```
    Append one formatted value to an Appendable.
    
    Parameters:
    
    appendable - to append value to
    
    value - value to format
    
    Throws:
    
    IOException - if an I/O error occurs
  - toString
```
public String toString(long value)
```
    Format one value.
    
    Parameters:
    
    value - value to format
    
    Returns:
    
    formatted string