GrowingArrayUtils (Javadocs [I2P+ 2.13.0+]

java.lang.Object
- net.i2p.router.crypto.ratchet.GrowingArrayUtils

```
final class GrowingArrayUtils
extends Object
```
Helper methods for efficient primitive array growth and insertion operations, treating array length as capacity rather than element count for optimal performance All methods in this class assume that the length of an array is equivalent to its capacity and NOT to number of elements in the array. The current size of the array is always passed in as a parameter.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static char[]`	`append(char[] array, int currentSize, char element)` Primitive char version of `append(Object[], int, Object)`.
`static <T> T[]`	`append(T[] array, int currentSize, T element)` Appends an element to the end of the array, growing the array if there is no more room.
`static int`	`growSize(int currentSize)` Given the current size of an array, returns an ideal size to which the array should grow.
`static char[]`	`insert(char[] array, int currentSize, int index, char element)` Primitive char version of `insert(Object[], int, int, Object)`.
`static <T> T[]`	`insert(T[] array, int currentSize, int index, T element)` Inserts an element into the array at the specified index, growing the array if there is no more room.

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

- Method Detail
  - append
```
public static char[] append(char[] array,
                            int currentSize,
                            char element)
```
    Primitive char version of append(Object[], int, Object).
  - append
```
public static <T> T[] append(T[] array,
                             int currentSize,
                             T element)
```
    Appends an element to the end of the array, growing the array if there is no more room.
    Parameters:
    array - The array to which to append the element. This must NOT be null.
    currentSize - The number of elements in the array. Must be less than or equal to array.length.
    element - The element to append.
    Returns:
    the array to which the element was appended. This may be different than the given array.
  - growSize
```
public static int growSize(int currentSize)
```
    Given the current size of an array, returns an ideal size to which the array should grow. This is typically double the given size, but should not be relied upon to do so in the future.
  - insert
```
public static char[] insert(char[] array,
                            int currentSize,
                            int index,
                            char element)
```
    Primitive char version of insert(Object[], int, int, Object).
  - insert
```
public static <T> T[] insert(T[] array,
                             int currentSize,
                             int index,
                             T element)
```
    Inserts an element into the array at the specified index, growing the array if there is no more room.
    Parameters:
    array - The array to which to append the element. Must NOT be null.
    currentSize - The number of elements in the array. Must be less than or equal to array.length.
    element - The element to insert.
    Returns:
    the array to which the element was appended. This may be different than the given array.

Class GrowingArrayUtils

Method Summary

Methods inherited from class java.lang.Object

Method Detail

append

append

growSize

insert

insert