Package gnu.trove.queue
Interface TDoubleQueue
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- All Superinterfaces:
TDoubleCollection
public interface TDoubleQueue extends TDoubleCollection
Interface for Trove queue implementations.- See Also:
Queue
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Field Summary
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Fields inherited from interface gnu.trove.TDoubleCollection
serialVersionUID
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description double
element()
Retrieves and removes the head of this queue.boolean
offer(double e)
Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions.double
peek()
Retrieves, but does not remove, the head of this queue, or returnsTDoubleCollection.getNoEntryValue()
if this queue is empty.double
poll()
Retrieves and removes the head of this queue, or returnsTDoubleCollection.getNoEntryValue()
if this queue is empty.-
Methods inherited from interface gnu.trove.TDoubleCollection
add, addAll, addAll, addAll, clear, contains, containsAll, containsAll, containsAll, equals, forEach, getNoEntryValue, hashCode, isEmpty, iterator, remove, removeAll, removeAll, removeAll, retainAll, retainAll, retainAll, size, toArray, toArray
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Method Detail
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element
double element()
Retrieves and removes the head of this queue. This method differs frompoll()
only in that it throws an exception if this queue is empty.
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offer
boolean offer(double e)
Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions. When using a capacity-restricted queue, this method is generally preferable toTDoubleCollection.add(double)
, which can fail to insert an element only by throwing an exception.- Parameters:
e
- The element to add.- Returns:
- true if the element was added to this queue, else false
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peek
double peek()
Retrieves, but does not remove, the head of this queue, or returnsTDoubleCollection.getNoEntryValue()
if this queue is empty.- Returns:
- the head of this queue, or
TDoubleCollection.getNoEntryValue()
if this queue is empty
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poll
double poll()
Retrieves and removes the head of this queue, or returnsTDoubleCollection.getNoEntryValue()
if this queue is empty.- Returns:
- the head of this queue, or
TDoubleCollection.getNoEntryValue()
if this queue is empty
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