Package com.ibm.icu.impl.coll
Class IterCollationIterator
java.lang.Object
com.ibm.icu.impl.coll.CollationIterator
com.ibm.icu.impl.coll.IterCollationIterator
- Direct Known Subclasses:
FCDIterCollationIterator
UCharIterator-based collation element and character iterator.
Handles normalized text, with length or NUL-terminated.
Unnormalized text is handled by a subclass.
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Field Summary
FieldsFields inherited from class com.ibm.icu.impl.coll.CollationIterator
data, NO_CP_AND_CE32, trie
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Constructor Summary
ConstructorsConstructorDescriptionIterCollationIterator
(CollationData d, boolean numeric, UCharacterIterator ui) -
Method Summary
Modifier and TypeMethodDescriptionprotected void
backwardNumCodePoints
(int num) protected void
forwardNumCodePoints
(int num) int
protected char
Called when handleNextCE32() returns a LEAD_SURROGATE_TAG for a lead surrogate code unit.protected long
Returns the next code point and its local CE32 value.int
Returns the next code point (with post-increment).int
Returns the previous code point (with pre-decrement).void
resetToOffset
(int newOffset) Resets the iterator state and sets the position to the specified offset.Methods inherited from class com.ibm.icu.impl.coll.CollationIterator
appendCEsFromCE32, clearCEs, clearCEsIfNoneRemaining, equals, fetchCEs, forbidSurrogateCodePoints, getCE, getCE32FromBuilderData, getCEs, getCEsLength, getDataCE32, hashCode, isLeadSurrogate, isTrailSurrogate, makeCodePointAndCE32Pair, nextCE, previousCE, reset, reset, setCurrentCE
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Field Details
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iter
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Constructor Details
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IterCollationIterator
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Method Details
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resetToOffset
public void resetToOffset(int newOffset) Description copied from class:CollationIterator
Resets the iterator state and sets the position to the specified offset. Subclasses must implement, and must call the parent class method, or CollationIterator.reset().- Specified by:
resetToOffset
in classCollationIterator
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getOffset
public int getOffset()- Specified by:
getOffset
in classCollationIterator
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nextCodePoint
public int nextCodePoint()Description copied from class:CollationIterator
Returns the next code point (with post-increment). Public for identical-level comparison and for testing.- Specified by:
nextCodePoint
in classCollationIterator
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previousCodePoint
public int previousCodePoint()Description copied from class:CollationIterator
Returns the previous code point (with pre-decrement). Public for identical-level comparison and for testing.- Specified by:
previousCodePoint
in classCollationIterator
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handleNextCE32
protected long handleNextCE32()Description copied from class:CollationIterator
Returns the next code point and its local CE32 value. Returns Collation.FALLBACK_CE32 at the end of the text (cinvalid input: '<'0) or when c's CE32 value is to be looked up in the base data (fallback). The code point is used for fallbacks, context and implicit weights. It is ignored when the returned CE32 is not special (e.g., FFFD_CE32). Returns the code point in bits 63..32 (signed) and the CE32 in bits 31..0.- Overrides:
handleNextCE32
in classCollationIterator
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handleGetTrailSurrogate
protected char handleGetTrailSurrogate()Description copied from class:CollationIterator
Called when handleNextCE32() returns a LEAD_SURROGATE_TAG for a lead surrogate code unit. Returns the trail surrogate in that case and advances past it, if a trail surrogate follows the lead surrogate. Otherwise returns any other code unit and does not advance.- Overrides:
handleGetTrailSurrogate
in classCollationIterator
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forwardNumCodePoints
protected void forwardNumCodePoints(int num) - Specified by:
forwardNumCodePoints
in classCollationIterator
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backwardNumCodePoints
protected void backwardNumCodePoints(int num) - Specified by:
backwardNumCodePoints
in classCollationIterator
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