Package org.roaringbitmap
Class Container
java.lang.Object
org.roaringbitmap.Container
- All Implemented Interfaces:
Externalizable
,Serializable
,Cloneable
,Iterable<Character>
,WordStorage<Container>
- Direct Known Subclasses:
ArrayContainer
,BitmapContainer
,RunContainer
public abstract class Container
extends Object
implements Iterable<Character>, Cloneable, Externalizable, WordStorage<Container>
Base container class.
- See Also:
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionabstract Container
add
(char x) Add a short to the container.abstract Container
add
(int begin, int end) Return a new container with all shorts in [begin,end) added using an unsigned interpretation.abstract Container
Computes the bitwise AND of this container with another (intersection).abstract Container
Computes the bitwise AND of this container with another (intersection).Computes the bitwise AND of this container with another (intersection).abstract Container
and
(RunContainer x) Computes the bitwise AND of this container with another (intersection).protected abstract int
protected abstract int
int
Computes the bitwise AND of this container with another (intersection).protected abstract int
abstract Container
Computes the bitwise ANDNOT of this container with another (difference).abstract Container
Computes the bitwise ANDNOT of this container with another (difference).Computes the bitwise ANDNOT of this container with another (difference).abstract Container
Computes the bitwise ANDNOT of this container with another (difference).protected void
assertNonEmpty
(boolean condition) Throw if the container is emptyabstract void
clear()
Empties the containerabstract Container
clone()
abstract boolean
contains
(char x) Checks whether the contain contains the provided valueabstract boolean
contains
(int minimum, int supremum) Checks whether the container contains the entire rangeprotected abstract boolean
contains
(ArrayContainer arrayContainer) protected abstract boolean
contains
(BitmapContainer bitmapContainer) boolean
Checks whether the container is a subset of this container or notprotected abstract boolean
contains
(RunContainer runContainer) abstract void
deserialize
(DataInput in) Deserialize (recover) the container.abstract void
fillLeastSignificant16bits
(int[] x, int i, int mask) Fill the least significant 16 bits of the integer array, starting at index i, with the short values from this container.abstract int
first()
Get the first integer held in the containerabstract Container
flip
(char x) Add a short to the container if it is not present, otherwise remove it.abstract void
forAll
(int offset, RelativeRangeConsumer rrc) Consume presence information for all values in this container.abstract void
forAllFrom
(char startValue, RelativeRangeConsumer rrc) Consume presence information for all values greater or equal to startValue in this container.abstract void
forAllInRange
(char startValue, char endValue, RelativeRangeConsumer rrc) Consumer presence information for all values in the range [startValue, endValue) in this container.abstract void
forAllUntil
(int offset, char endValue, RelativeRangeConsumer rrc) Consume presence information for all values smaller than endValue in this container.abstract void
forEach
(char msb, IntConsumer ic) Iterate through the values of this container and pass them along to the IntConsumer, using msb as the 16 most significant bits.abstract int
Size of the underlying arrayabstract ContainerBatchIterator
Gets an iterator to visit the contents of the container in batchesabstract int
Computes the distinct number of char values in the container.abstract PeekableCharIterator
Iterator to visit the char values in the container in ascending order.abstract PeekableCharRankIterator
Iterator to visit the short values in container and pre-compute ranksGet the name of this container.abstract PeekableCharIterator
Iterator to visit the char values in the container in descending order.abstract int
Computes an estimate of the memory usage of this container.abstract Container
iadd
(int begin, int end) Add all shorts in [begin,end) using an unsigned interpretation.abstract Container
Computes the in-place bitwise AND of this container with another (intersection).abstract Container
Computes the in-place bitwise AND of this container with another (intersection).Computes the in-place bitwise AND of this container with another (intersection).abstract Container
iand
(RunContainer x) Computes the in-place bitwise AND of this container with another (intersection).abstract Container
Computes the in-place bitwise ANDNOT of this container with another (difference).abstract Container
Computes the in-place bitwise ANDNOT of this container with another (difference).Computes the in-place bitwise ANDNOT of this container with another (difference).abstract Container
Computes the in-place bitwise ANDNOT of this container with another (difference).abstract Container
inot
(int rangeStart, int rangeEnd) Computes the in-place bitwise NOT of this container (complement).abstract boolean
intersects
(int minimum, int supremum) Checks if the container intersects with a rangeabstract boolean
Returns true if the current container intersects the other container.abstract boolean
Returns true if the current container intersects the other container.boolean
Returns true if the current container intersects the other container.abstract boolean
Returns true if the current container intersects the other container.abstract Container
Computes the in-place bitwise OR of this container with another (union).abstract Container
Computes the in-place bitwise OR of this container with another (union).Computes the in-place bitwise OR of this container with another (union).abstract Container
ior
(RunContainer x) Computes the in-place bitwise OR of this container with another (union).Computes the in-place bitwise ORNOT of this container with another.abstract Container
iremove
(int begin, int end) Remove shorts in [begin,end) using an unsigned interpretation.abstract boolean
isEmpty()
Checks whether the container is empty or not.abstract boolean
isFull()
Checks whether the container is full or not.abstract Container
Computes the in-place bitwise XOR of this container with another (symmetric difference).abstract Container
Computes the in-place bitwise XOR of this container with another (symmetric difference).Computes the in-place bitwise OR of this container with another (union).abstract Container
ixor
(RunContainer x) Computes the in-place bitwise XOR of this container with another (symmetric difference).abstract int
last()
Get the last integer held in the containerComputes the in-place bitwise OR of this container with another (union).Computes the bitwise OR of this container with another (union).abstract Container
limit
(int maxcardinality) Create a new Container containing at most maxcardinality integers.abstract int
nextAbsentValue
(char fromValue) Gets the first absent value greater than or equal to the lower bound.abstract int
nextValue
(char fromValue) Gets the first value greater than or equal to the lower bound, or -1 if no such value exists.abstract Container
not
(int rangeStart, int rangeEnd) Computes the bitwise NOT of this container (complement).abstract Container
or
(ArrayContainer x) Computes the bitwise OR of this container with another (union).abstract Container
Computes the bitwise OR of this container with another (union).Computes the bitwise OR of this container with another (union).abstract Container
or
(RunContainer x) Computes the bitwise OR of this container with another (union).Computes the bitwise ORNOT of this container with another.abstract int
previousAbsentValue
(char fromValue) Gets the last value less than or equal to the upper bound.abstract int
previousValue
(char fromValue) Gets the last value less than or equal to the upper bound, or -1 if no such value exists.static Container
rangeOfOnes
(int start, int last) Create a container initialized with a range of consecutive valuesabstract int
rank
(char lowbits) Rank returns the number of integers that are smaller or equal to x (Rank(infinity) would be GetCardinality()).abstract Container
remove
(char x) Remove the char from this container.abstract Container
remove
(int begin, int end) Return a new container with all chars in [begin,end) remove using an unsigned interpretation.abstract Container
The output of a lazyOR or lazyIOR might be an invalid container, this should be called on it.abstract Container
Convert to RunContainers, when the result is smaller.abstract char
select
(int j) Return the jth valueabstract void
serialize
(DataOutput out) Serialize the container.abstract int
Report the number of bytes required to serialize this container.abstract BitmapContainer
Convert the current container to a BitmapContainer, if a conversion is needed.abstract MappeableContainer
Convert to a mappeable container.abstract void
trim()
If possible, recover wasted memory.abstract void
writeArray
(DataOutput out) Write just the underlying array.abstract void
writeArray
(ByteBuffer buffer) Write just the underlying array.abstract Container
Computes the bitwise XOR of this container with another (symmetric difference).abstract Container
Computes the bitwise XOR of this container with another (symmetric difference).Computes the bitwise XOR of this container with another (symmetric difference).abstract Container
xor
(RunContainer x) Computes the bitwise XOR of this container with another (symmetric difference).int
xorCardinality
(Container other) Returns the cardinality of the XOR between the passed container and this container without materialising a temporary container.Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface java.io.Externalizable
readExternal, writeExternal
Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator
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Field Details
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ContainerNames
Name of the various possible containers
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Constructor Details
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Container
public Container()
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Method Details
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rangeOfOnes
Create a container initialized with a range of consecutive values- Parameters:
start
- first indexlast
- last index (range is exclusive)- Returns:
- a new container initialized with the specified values
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add
Return a new container with all shorts in [begin,end) added using an unsigned interpretation.- Parameters:
begin
- start of range (inclusive)end
- end of range (exclusive)- Returns:
- the new container
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add
Add a short to the container. May generate a new container.- Specified by:
add
in interfaceWordStorage<Container>
- Parameters:
x
- short to be added- Returns:
- the new container
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and
Computes the bitwise AND of this container with another (intersection). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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and
Computes the bitwise AND of this container with another (intersection). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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and
Computes the bitwise AND of this container with another (intersection). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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and
Computes the bitwise AND of this container with another (intersection). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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andCardinality
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andCardinality
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andCardinality
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andCardinality
Computes the bitwise AND of this container with another (intersection). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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xorCardinality
Returns the cardinality of the XOR between the passed container and this container without materialising a temporary container.- Parameters:
other
- other container- Returns:
- the cardinality of the symmetric difference of the two containers
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andNot
Computes the bitwise ANDNOT of this container with another (difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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andNot
Computes the bitwise ANDNOT of this container with another (difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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andNot
Computes the bitwise ANDNOT of this container with another (difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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andNot
Computes the bitwise ANDNOT of this container with another (difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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orNot
Computes the bitwise ORNOT of this container with another. This container as well as the provided container are left unaffected.- Parameters:
x
- other containerendOfRange
- end of range (size of the universe)- Returns:
- aggregated container
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clear
public abstract void clear()Empties the container -
clone
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isEmpty
public abstract boolean isEmpty()Checks whether the container is empty or not.- Specified by:
isEmpty
in interfaceWordStorage<Container>
- Returns:
- true if the container is empty.
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isFull
public abstract boolean isFull()Checks whether the container is full or not.- Returns:
- true if the container is full.
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contains
public abstract boolean contains(char x) Checks whether the contain contains the provided value- Parameters:
x
- value to check- Returns:
- whether the value is in the container
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contains
public abstract boolean contains(int minimum, int supremum) Checks whether the container contains the entire range- Parameters:
minimum
- the inclusive lower bound of the rangesupremum
- the exclusive upper bound of the range- Returns:
- true if the container contains the range
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contains
Checks whether the container is a subset of this container or not- Parameters:
subset
- the container to be tested- Returns:
- true if the parameter is a subset of this container
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contains
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contains
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contains
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deserialize
Deserialize (recover) the container.- Parameters:
in
- the DataInput stream- Throws:
IOException
- Signals that an I/O exception has occurred.
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fillLeastSignificant16bits
public abstract void fillLeastSignificant16bits(int[] x, int i, int mask) Fill the least significant 16 bits of the integer array, starting at index i, with the short values from this container. The caller is responsible to allocate enough room. The most significant 16 bits of each integer are given by the most significant bits of the provided mask.- Parameters:
x
- provided arrayi
- starting indexmask
- indicates most significant bits
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flip
Add a short to the container if it is not present, otherwise remove it. May generate a new container.- Parameters:
x
- short to be added- Returns:
- the new container
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getArraySizeInBytes
public abstract int getArraySizeInBytes()Size of the underlying array- Returns:
- size in bytes
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getCardinality
public abstract int getCardinality()Computes the distinct number of char values in the container. Can be expected to run in constant time.- Returns:
- the cardinality
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getContainerName
Get the name of this container.- Returns:
- name of the container
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forEach
Iterate through the values of this container and pass them along to the IntConsumer, using msb as the 16 most significant bits.- Parameters:
msb
- 16 most significant bitsic
- consumer
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forAll
Consume presence information for all values in this container.- Parameters:
offset
- First value in this container corresponds to this relativePos in the range consumer.rrc
- consumer
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forAllFrom
Consume presence information for all values greater or equal to startValue in this container.- Parameters:
startValue
- First value to consume. Corresponds to relativePos=0 in the range consumer.rrc
- consumer
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forAllUntil
Consume presence information for all values smaller than endValue in this container.- Parameters:
offset
- First value in this container corresponds to this relativePos in the range consumer.endValue
- First value greater than last value to consume.rrc
- consumer
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forAllInRange
Consumer presence information for all values in the range [startValue, endValue) in this container.- Parameters:
startValue
- First value to consume. Corresponds to relativePos=0 in the range consumer.endValue
- First value greater than last value to consume.rrc
- consumer
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getReverseCharIterator
Iterator to visit the char values in the container in descending order.- Returns:
- iterator
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getCharIterator
Iterator to visit the char values in the container in ascending order.- Returns:
- iterator
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getCharRankIterator
Iterator to visit the short values in container and pre-compute ranks- Returns:
- iterator
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getBatchIterator
Gets an iterator to visit the contents of the container in batches- Returns:
- iterator
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getSizeInBytes
public abstract int getSizeInBytes()Computes an estimate of the memory usage of this container. The estimate is not meant to be exact.- Returns:
- estimated memory usage in bytes
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iadd
Add all shorts in [begin,end) using an unsigned interpretation. May generate a new container.- Parameters:
begin
- start of range (inclusive)end
- end of range (exclusive)- Returns:
- the new container
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iand
Computes the in-place bitwise AND of this container with another (intersection). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iand
Computes the in-place bitwise AND of this container with another (intersection). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iand
Computes the in-place bitwise AND of this container with another (intersection). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iand
Computes the in-place bitwise AND of this container with another (intersection). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iandNot
Computes the in-place bitwise ANDNOT of this container with another (difference). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iandNot
Computes the in-place bitwise ANDNOT of this container with another (difference). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iandNot
Computes the in-place bitwise ANDNOT of this container with another (difference). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iandNot
Computes the in-place bitwise ANDNOT of this container with another (difference). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iorNot
Computes the in-place bitwise ORNOT of this container with another. The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other containerendOfRange
- the exclusive end- Returns:
- aggregated container
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inot
Computes the in-place bitwise NOT of this container (complement). Only those bits within the range are affected. The current container is generally modified. May generate a new container.- Parameters:
rangeStart
- beginning of range (inclusive); 0 is beginning of this container.rangeEnd
- ending of range (exclusive)- Returns:
- (partially) complemented container
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intersects
Returns true if the current container intersects the other container.- Parameters:
x
- other container- Returns:
- whether they intersect
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intersects
Returns true if the current container intersects the other container.- Parameters:
x
- other container- Returns:
- whether they intersect
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intersects
Returns true if the current container intersects the other container.- Parameters:
x
- other container- Returns:
- whether they intersect
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intersects
Returns true if the current container intersects the other container.- Parameters:
x
- other container- Returns:
- whether they intersect
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intersects
public abstract boolean intersects(int minimum, int supremum) Checks if the container intersects with a range- Parameters:
minimum
- the inclusive unsigned lower bound of the rangesupremum
- the exclusive unsigned upper bound of the range- Returns:
- true if the container intersects the range
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ior
Computes the in-place bitwise OR of this container with another (union). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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ior
Computes the in-place bitwise OR of this container with another (union). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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ior
Computes the in-place bitwise OR of this container with another (union). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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ior
Computes the in-place bitwise OR of this container with another (union). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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iremove
Remove shorts in [begin,end) using an unsigned interpretation. May generate a new container.- Parameters:
begin
- start of range (inclusive)end
- end of range (exclusive)- Returns:
- the new container
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ixor
Computes the in-place bitwise XOR of this container with another (symmetric difference). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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ixor
Computes the in-place bitwise XOR of this container with another (symmetric difference). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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ixor
Computes the in-place bitwise OR of this container with another (union). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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ixor
Computes the in-place bitwise XOR of this container with another (symmetric difference). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container.- Parameters:
x
- other container- Returns:
- aggregated container
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lazyIOR
Computes the in-place bitwise OR of this container with another (union). The current container is generally modified, whereas the provided container (x) is unaffected. May generate a new container. The resulting container may not track its cardinality correctly. The resulting container may not track its cardinality correctly. This can be fixed as follows: if(c.getCardinality()<0) ((BitmapContainer)c).computeCardinality();- Parameters:
x
- other container- Returns:
- aggregated container
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lazyOR
Computes the bitwise OR of this container with another (union). This container as well as the provided container are left unaffected. The resulting container may not track its cardinality correctly. This can be fixed as follows: if(c.getCardinality()<0) ((BitmapContainer)c).computeCardinality();- Parameters:
x
- other container- Returns:
- aggregated container
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limit
Create a new Container containing at most maxcardinality integers.- Parameters:
maxcardinality
- maximal cardinality- Returns:
- a new bitmap with cardinality no more than maxcardinality
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not
Computes the bitwise NOT of this container (complement). Only those bits within the range are affected. The current container is left unaffected.- Parameters:
rangeStart
- beginning of range (inclusive); 0 is beginning of this container.rangeEnd
- ending of range (exclusive)- Returns:
- (partially) complemented container
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or
Computes the bitwise OR of this container with another (union). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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or
Computes the bitwise OR of this container with another (union). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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or
Computes the bitwise OR of this container with another (union). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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or
Computes the bitwise OR of this container with another (union). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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rank
public abstract int rank(char lowbits) Rank returns the number of integers that are smaller or equal to x (Rank(infinity) would be GetCardinality()).- Parameters:
lowbits
- upper limit- Returns:
- the rank
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remove
Return a new container with all chars in [begin,end) remove using an unsigned interpretation.- Parameters:
begin
- start of range (inclusive)end
- end of range (exclusive)- Returns:
- the new container
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remove
Remove the char from this container. May create a new container.- Parameters:
x
- to be removed- Returns:
- New container
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repairAfterLazy
The output of a lazyOR or lazyIOR might be an invalid container, this should be called on it.- Returns:
- a new valid container
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runOptimize
Convert to RunContainers, when the result is smaller. Overridden by RunContainer to possibility switch from RunContainer to a smaller alternative. Overridden by BitmapContainer with a more efficient approach.- Specified by:
runOptimize
in interfaceWordStorage<Container>
- Returns:
- the new container
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select
public abstract char select(int j) Return the jth value- Parameters:
j
- index of the value- Returns:
- the value
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serialize
Serialize the container.- Parameters:
out
- the DataOutput stream- Throws:
IOException
- Signals that an I/O exception has occurred.
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serializedSizeInBytes
public abstract int serializedSizeInBytes()Report the number of bytes required to serialize this container.- Returns:
- the size in bytes
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toMappeableContainer
Convert to a mappeable container.- Returns:
- the mappeable container
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trim
public abstract void trim()If possible, recover wasted memory. -
writeArray
Write just the underlying array.- Parameters:
out
- output stream- Throws:
IOException
- in case of failure
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writeArray
Write just the underlying array.- Parameters:
buffer
- ByteBuffer to write to
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xor
Computes the bitwise XOR of this container with another (symmetric difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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xor
Computes the bitwise XOR of this container with another (symmetric difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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xor
Computes the bitwise XOR of this container with another (symmetric difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other parameter- Returns:
- aggregated container
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xor
Computes the bitwise XOR of this container with another (symmetric difference). This container as well as the provided container are left unaffected.- Parameters:
x
- other container- Returns:
- aggregated container
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toBitmapContainer
Convert the current container to a BitmapContainer, if a conversion is needed. If the container is already a bitmap, the container is returned unchanged.- Returns:
- a bitmap container
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nextValue
public abstract int nextValue(char fromValue) Gets the first value greater than or equal to the lower bound, or -1 if no such value exists.- Parameters:
fromValue
- the lower bound (inclusive)- Returns:
- the next value
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previousValue
public abstract int previousValue(char fromValue) Gets the last value less than or equal to the upper bound, or -1 if no such value exists.- Parameters:
fromValue
- the upper bound (inclusive)- Returns:
- the previous value
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nextAbsentValue
public abstract int nextAbsentValue(char fromValue) Gets the first absent value greater than or equal to the lower bound.- Parameters:
fromValue
- the lower bound (inclusive)- Returns:
- the next absent value
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previousAbsentValue
public abstract int previousAbsentValue(char fromValue) Gets the last value less than or equal to the upper bound.- Parameters:
fromValue
- the upper bound (inclusive)- Returns:
- the previous absent value
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first
public abstract int first()Get the first integer held in the container- Returns:
- the first integer in the container
- Throws:
NoSuchElementException
- if empty
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last
public abstract int last()Get the last integer held in the container- Returns:
- the last integer in the container
- Throws:
NoSuchElementException
- if empty
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assertNonEmpty
protected void assertNonEmpty(boolean condition) Throw if the container is empty- Parameters:
condition
- a boolean expression- Throws:
NoSuchElementException
- if empty
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