Class ObjectArrayBuffer<T>

java.lang.Object

com.oracle.truffle.regex.tregex.buffer.AbstractArrayBuffer

com.oracle.truffle.regex.tregex.buffer.ObjectArrayBuffer<T>

All Implemented Interfaces:

Iterable<T>

public final class ObjectArrayBuffer<T>
extends AbstractArrayBuffer
implements Iterable<T>

This class is designed as a "scratchpad" for generating many Object arrays of unknown size. It will never shrink its internal buffer, so it should be disposed as soon as it is no longer needed.

Usage Example:

 SomeClass[] typedArray = new SomeClass[0];
 ObjectArrayBuffer buf = new ObjectArrayBuffer();
 List<SomeClass[]> results = new ArrayList<>();
 for (Object obj : listOfThingsToProcess) {
     for (Object x : obj.thingsThatShouldBecomeSomeClass()) {
         buf.add(someCalculation(x));
     }
     results.add(buf.toArray(typedArray));
     buf.clear();
 }
 

Constructor Summary

Constructors

Constructor	Description
ObjectArrayBuffer()
ObjectArrayBuffer(int initialSize)

Method Summary

Modifier and Type	Method	Description
void	add(T o)
void	addAll(ObjectArrayBuffer<T> other)
void	addAll(Object[] arr)
void	addAll(Object[] arr, int fromIndex, int toIndex)
ObjectArrayBuffer<T>	asFixedSizeArray(int size)
T	get(int i)
Iterator<T>	iterator()
Object	peek()
Object	pop()
void	set(int i, T obj)
void	sort(Comparator<T> comparator)
<ST> ST[]	toArray(ST[] a)

Methods inherited from class com.oracle.truffle.regex.tregex.buffer.AbstractArrayBuffer

clear, ensureCapacity, isEmpty, length, setLength

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

ObjectArrayBuffer

public ObjectArrayBuffer()

ObjectArrayBuffer

public ObjectArrayBuffer(int initialSize)

Method Details

get

public T get(int i)

set

public void set(int i,
 T obj)

add

public void add(T o)

addAll

public void addAll(ObjectArrayBuffer<T> other)

addAll

public void addAll(Object[] arr)

addAll

public void addAll(Object[] arr,
 int fromIndex,
 int toIndex)

pop

public Object pop()

peek

public Object peek()

asFixedSizeArray

public ObjectArrayBuffer<T> asFixedSizeArray(int size)

sort

public void sort(Comparator<T> comparator)

toArray

public <ST> ST[] toArray(ST[] a)

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>