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public interface RangeValueIterator
Interface for enabling iteration over sets of <int index, int value>, where index is the sorted integer index in ascending order and value, its associated integer value.
The result for each iteration is the consecutive range of <int index, int value> with the same value. Result is represented by <start, limit, value> where
Hence value(start) = value(start + 1) = .... = value(start + n) = .... = value(limit - 1). However value(start -1) != value(start) and value(limit) != value(start).
Most implementations will be created by factory methods, such as the character type iterator in UCharacter.getTypeIterator. See example below.
Example of use:RangeValueIterator iterator = UCharacter.getTypeIterator(); RangeValueIterator.Element result = new RangeValueIterator.Element(); while (iterator.next(result)) { System.out.println("Codepoint \\u" + Integer.toHexString(result.start) + " to codepoint \\u" + Integer.toHexString(result.limit - 1) + " has the character type " + result.value); }
Nested Class Summary | |
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static class |
RangeValueIterator.Element
Return result wrapper for com.ibm.icu.util.RangeValueIterator. |
Method Summary | |
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boolean |
next(RangeValueIterator.Element element)
Returns the next maximal result range with a common value and returns true if we are not at the end of the iteration, false otherwise. |
void |
reset()
Resets the iterator to the beginning of the iteration. |
Method Detail |
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boolean next(RangeValueIterator.Element element)
Returns the next maximal result range with a common value and returns true if we are not at the end of the iteration, false otherwise.
If this returns a false, the contents of elements will not be updated.
element
- for storing the result range and value
RangeValueIterator.Element
void reset()
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