com.ibm.icu.impl.coll

Class CollationWeights

java.lang.Object

com.ibm.icu.impl.coll.CollationWeights

public final class CollationWeights
extends Object

Allocates n collation element weights between two exclusive limits. Used only internally by the collation tailoring builder.

Constructor Summary

Constructors

Constructor and Description
CollationWeights()

Method Summary

Modifier and Type	Method and Description
boolean	allocWeights(long lowerLimit, long upperLimit, int n) Determine heuristically what ranges to use for a given number of weights between (excluding) two limits.
void	initForPrimary(boolean compressible)
void	initForSecondary()
void	initForTertiary()
static int	lengthOfWeight(long weight)
long	nextWeight() Given a set of ranges calculated by allocWeights(), iterate through the weights.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CollationWeights

public CollationWeights()

Method Detail

initForPrimary

public void initForPrimary(boolean compressible)

initForSecondary

public void initForSecondary()

initForTertiary

public void initForTertiary()

allocWeights

public boolean allocWeights(long lowerLimit,
                            long upperLimit,
                            int n)

Determine heuristically what ranges to use for a given number of weights between (excluding) two limits.

Parameters:

lowerLimit - A collation element weight; the ranges will be filled to cover weights greater than this one.

upperLimit - A collation element weight; the ranges will be filled to cover weights less than this one.

n - The number of collation element weights w necessary such that lowerLimit

Returns:

true if it is possible to fit n elements between the limits

nextWeight

public long nextWeight()

Given a set of ranges calculated by allocWeights(), iterate through the weights. The ranges are modified to keep the current iteration state.

Returns:

The next weight in the ranges, or 0xffffffff if there is none left.

lengthOfWeight

public static int lengthOfWeight(long weight)