Package gnu.trove.queue
Interface TLongQueue
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- All Superinterfaces:
TLongCollection
public interface TLongQueue extends TLongCollection
Interface for Trove queue implementations.- See Also:
Queue
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Field Summary
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Fields inherited from interface gnu.trove.TLongCollection
serialVersionUID
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description long
element()
Retrieves and removes the head of this queue.boolean
offer(long e)
Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions.long
peek()
Retrieves, but does not remove, the head of this queue, or returnsTLongCollection.getNoEntryValue()
if this queue is empty.long
poll()
Retrieves and removes the head of this queue, or returnsTLongCollection.getNoEntryValue()
if this queue is empty.-
Methods inherited from interface gnu.trove.TLongCollection
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
long 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(long 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 toTLongCollection.add(long)
, 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
long peek()
Retrieves, but does not remove, the head of this queue, or returnsTLongCollection.getNoEntryValue()
if this queue is empty.- Returns:
- the head of this queue, or
TLongCollection.getNoEntryValue()
if this queue is empty
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poll
long poll()
Retrieves and removes the head of this queue, or returnsTLongCollection.getNoEntryValue()
if this queue is empty.- Returns:
- the head of this queue, or
TLongCollection.getNoEntryValue()
if this queue is empty
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