org.sonar.plugins.core.timemachine.tracking

Class StringTextComparator

java.lang.Object

org.sonar.plugins.core.timemachine.tracking.StringTextComparator

All Implemented Interfaces:

SequenceComparator<StringText>

public abstract class StringTextComparator
extends Object
implements SequenceComparator<StringText>

Equivalence function for StringText.

Field Summary

Fields

Modifier and Type	Field and Description
static StringTextComparator	IGNORE_WHITESPACE Ignores all whitespace.

Constructor Summary

Constructors

Constructor and Description
StringTextComparator()

Method Summary

Methods

Modifier and Type	Method and Description
int	hash(StringText seq, int line) Get a hash value for an item in a sequence.
protected abstract int	hashRegion(String content, int start, int end)
static int	trimTrailingWhitespace(String content, int start, int end)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.sonar.plugins.core.timemachine.tracking.SequenceComparator

equals

Field Detail

IGNORE_WHITESPACE

public static final StringTextComparator IGNORE_WHITESPACE

Ignores all whitespace.

Constructor Detail

StringTextComparator

public StringTextComparator()

Method Detail

hash

public int hash(StringText seq,
       int line)

Description copied from interface: SequenceComparator

Get a hash value for an item in a sequence. If two items are equal according to this comparator's SequenceComparator.equals(Sequence, int, Sequence, int) method, then this hash method must produce the same integer result for both items. However not required to have different hash values for different items.

Specified by:

hash in interface SequenceComparator<StringText>

hashRegion

protected abstract int hashRegion(String content,
             int start,
             int end)

trimTrailingWhitespace

public static int trimTrailingWhitespace(String content,
                         int start,
                         int end)