LazilyConcatenatedByteArray (Keikai Spreadsheet Build 6.0.0 API)

java.lang.Object
- org.apache.poi.hssf.util.LazilyConcatenatedByteArray

```
public class LazilyConcatenatedByteArray
extends Object
```
Utility for delaying the concatenation of multiple byte arrays. Doing this up-front causes significantly more copying, which for a large number of byte arrays can cost a large amount of time.

Constructor Summary

Constructors
Constructor Description

LazilyConcatenatedByteArray()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Clears the array (sets the concatenated length back to zero.
`void`	`concatenate(byte[] array)`	Concatenates an array onto the end of our array.
`void`	`concatenate(LazilyConcatenatedByteArray other)`
`byte[]`	`toArray()`	Gets the concatenated contents as a single byte array.

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

- Constructor Detail
  - LazilyConcatenatedByteArray
```
public LazilyConcatenatedByteArray()
```
- Method Detail
  - clear
```
public void clear()
```
    Clears the array (sets the concatenated length back to zero.
  - concatenate
```
public void concatenate(byte[] array)
```
    Concatenates an array onto the end of our array. This is a relatively fast operation.
    
    Parameters:
    
    array - the array to concatenate.
    
    Throws:
    
    IllegalArgumentException - if array is null.
  - concatenate
```
public void concatenate(LazilyConcatenatedByteArray other)
```
  - toArray
```
public byte[] toArray()
```
    Gets the concatenated contents as a single byte array. This is a slower operation, but the concatenated array is stored off as a single array again so that subsequent calls will not perform additional copying.
    
    Returns:
    
    the byte array. Returns null if no data has been placed into it.