org.eclipse.m2e.core.ui.internal.editing

Class ChangeCreator.LineComparator

java.lang.Object

org.eclipse.m2e.core.ui.internal.editing.ChangeCreator.LineComparator

All Implemented Interfaces:

org.eclipse.compare.rangedifferencer.IRangeComparator

Enclosing class:

ChangeCreator

public static class ChangeCreator.LineComparator
extends java.lang.Object
implements org.eclipse.compare.rangedifferencer.IRangeComparator

Field Summary

Fields

Modifier and Type	Field and Description
private org.eclipse.jface.text.IDocument	document
private java.util.ArrayList<java.lang.Integer>	hashes

Constructor Summary

Constructors

Constructor and Description
LineComparator(org.eclipse.jface.text.IDocument document) Create a line comparator for the given document.

Method Summary

Modifier and Type	Method and Description
private int	computeDJBHash(java.lang.String string) Compute a hash using the DJB hash algorithm
private java.lang.Integer	getHash(int line)
int	getRangeCount()
boolean	rangesEqual(int thisIndex, org.eclipse.compare.rangedifferencer.IRangeComparator other, int otherIndex)
boolean	skipRangeComparison(int length, int maxLength, org.eclipse.compare.rangedifferencer.IRangeComparator other)

Methods inherited from class java.lang.Object

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

Field Detail

document

private final org.eclipse.jface.text.IDocument document

hashes

private final java.util.ArrayList<java.lang.Integer> hashes

Constructor Detail

LineComparator

public LineComparator(org.eclipse.jface.text.IDocument document)

Create a line comparator for the given document.

Parameters:

document -

Method Detail

getRangeCount

public int getRangeCount()

Specified by:

getRangeCount in interface org.eclipse.compare.rangedifferencer.IRangeComparator

rangesEqual

public boolean rangesEqual(int thisIndex,
                           org.eclipse.compare.rangedifferencer.IRangeComparator other,
                           int otherIndex)

Specified by:

rangesEqual in interface org.eclipse.compare.rangedifferencer.IRangeComparator

skipRangeComparison

public boolean skipRangeComparison(int length,
                                   int maxLength,
                                   org.eclipse.compare.rangedifferencer.IRangeComparator other)

Specified by:

skipRangeComparison in interface org.eclipse.compare.rangedifferencer.IRangeComparator

getHash

private java.lang.Integer getHash(int line)
                           throws org.eclipse.jface.text.BadLocationException

Parameters:

line - the number of the line in the document to get the hash for

Returns:

the hash of the line

Throws:

org.eclipse.jface.text.BadLocationException - if the line number is invalid

computeDJBHash

private int computeDJBHash(java.lang.String string)

Compute a hash using the DJB hash algorithm

Parameters:

string - the string for which to compute a hash

Returns:

the DJB hash value of the string