Package arc.struct
Class LongSeq
java.lang.Object
arc.struct.LongSeq
A resizable, ordered or unordered long array. Avoids the boxing that occurs with ArrayList. If unordered, this class
avoids a memory copy when removing elements (the last element is moved to the removed element's position).
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Field Summary
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Constructor Summary
ConstructorDescriptionLongSeq()
Creates an ordered array with a capacity of 16.LongSeq
(boolean ordered, int capacity) LongSeq
(boolean ordered, long[] array, int startIndex, int count) Creates a new array containing the elements in the specified array.LongSeq
(int capacity) Creates an ordered array with the specified capacity.LongSeq
(long[] array) Creates a new ordered array containing the elements in the specified array.Creates a new array containing the elements in the specific array. -
Method Summary
Modifier and TypeMethodDescriptionvoid
add
(long value) void
add
(long value1, long value2) void
add
(long value1, long value2, long value3) void
add
(long value1, long value2, long value3, long value4) void
addAll
(long... array) void
addAll
(long[] array, int offset, int length) void
void
void
clear()
boolean
contains
(long value) long[]
ensureCapacity
(int additionalCapacity) Increases the size of the backing array to accommodate the specified number of additional items.boolean
long
first()
Returns the first item.long
get
(int index) int
hashCode()
void
incr
(int index, long value) int
indexOf
(long value) void
insert
(int index, long value) boolean
isEmpty()
Returns true if the array is empty.int
lastIndexOf
(char value) void
mul
(int index, long value) long
peek()
Returns the last item.long
pop()
Removes and returns the last item.long
random()
Returns a random item from the array, or zero if the array is empty.boolean
Removes from this array all of elements contained in the specified array.long
removeIndex
(int index) Removes and returns the item at the specified index.void
removeRange
(int start, int end) Removes the items between the specified indices, inclusive.boolean
removeValue
(long value) protected long[]
resize
(int newSize) void
reverse()
void
set
(int index, long value) long[]
setSize
(int newSize) Sets the array size, leaving any values beyond the current size undefined.long[]
shrink()
Reduces the size of the backing array to the size of the actual items.void
shuffle()
void
sort()
void
swap
(int first, int second) long[]
toArray()
toString()
void
truncate
(int newSize) Reduces the size of the array to the specified size.static LongSeq
with
(long... array)
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Field Details
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items
public long[] items -
size
public int size -
ordered
public boolean ordered
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Constructor Details
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LongSeq
public LongSeq()Creates an ordered array with a capacity of 16. -
LongSeq
public LongSeq(int capacity) Creates an ordered array with the specified capacity. -
LongSeq
public LongSeq(boolean ordered, int capacity) - Parameters:
ordered
- If false, methods that remove elements may change the order of other elements in the array, which avoids a memory copy.capacity
- Any elements added beyond this will cause the backing array to be grown.
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LongSeq
Creates a new array containing the elements in the specific array. The new array will be ordered if the specific array is ordered. The capacity is set to the number of elements, so any subsequent elements added will cause the backing array to be grown. -
LongSeq
public LongSeq(long[] array) Creates a new ordered array containing the elements in the specified array. The capacity is set to the number of elements, so any subsequent elements added will cause the backing array to be grown. -
LongSeq
public LongSeq(boolean ordered, long[] array, int startIndex, int count) Creates a new array containing the elements in the specified array. The capacity is set to the number of elements, so any subsequent elements added will cause the backing array to be grown.- Parameters:
ordered
- If false, methods that remove elements may change the order of other elements in the array, which avoids a memory copy.
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Method Details
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with
- See Also:
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add
public void add(long value) -
add
public void add(long value1, long value2) -
add
public void add(long value1, long value2, long value3) -
add
public void add(long value1, long value2, long value3, long value4) -
addAll
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addAll
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addAll
public void addAll(long... array) -
addAll
public void addAll(long[] array, int offset, int length) -
get
public long get(int index) -
set
public void set(int index, long value) -
incr
public void incr(int index, long value) -
mul
public void mul(int index, long value) -
insert
public void insert(int index, long value) -
swap
public void swap(int first, int second) -
contains
public boolean contains(long value) -
indexOf
public int indexOf(long value) -
lastIndexOf
public int lastIndexOf(char value) -
removeValue
public boolean removeValue(long value) -
removeIndex
public long removeIndex(int index) Removes and returns the item at the specified index. -
removeRange
public void removeRange(int start, int end) Removes the items between the specified indices, inclusive. -
removeAll
Removes from this array all of elements contained in the specified array.- Returns:
- true if this array was modified.
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pop
public long pop()Removes and returns the last item. -
peek
public long peek()Returns the last item. -
first
public long first()Returns the first item. -
isEmpty
public boolean isEmpty()Returns true if the array is empty. -
clear
public void clear() -
shrink
public long[] shrink()Reduces the size of the backing array to the size of the actual items. This is useful to release memory when many items have been removed, or if it is known that more items will not be added.- Returns:
items
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ensureCapacity
public long[] ensureCapacity(int additionalCapacity) Increases the size of the backing array to accommodate the specified number of additional items. Useful before adding many items to avoid multiple backing array resizes.- Returns:
items
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setSize
public long[] setSize(int newSize) Sets the array size, leaving any values beyond the current size undefined.- Returns:
items
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resize
protected long[] resize(int newSize) -
sort
public void sort() -
reverse
public void reverse() -
shuffle
public void shuffle() -
truncate
public void truncate(int newSize) Reduces the size of the array to the specified size. If the array is already smaller than the specified size, no action is taken. -
random
public long random()Returns a random item from the array, or zero if the array is empty. -
toArray
public long[] toArray() -
hashCode
public int hashCode() -
equals
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toString
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toString
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