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natural ordering for lines

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git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@724 0924bc21-9374-b0fa-ee44-9ff1593b38f0
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andreas.schildbach@gmail.com 2011-07-01 11:38:03 +00:00
parent e0a8ff7c53
commit e2a9a01ed6
1 changed files with 19 additions and 1 deletions
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20
src/de/schildbach/pte/dto/Line.java
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@ -22,19 +22,24 @@ import java.io.Serializable;
/**
* @author Andreas Schildbach
*/
public final class Line implements Serializable
public final class Line implements Serializable, Comparable<Line>
{
private static final long serialVersionUID = -5642533805998375070L;
final public String id;
final private transient char product; // TODO make true field
final public String label;
final public int[] colors;
private static final String PRODUCT_ORDER = "IRSUTBPFC";
public Line(final String id, final String label, final int[] colors)
{
this.id = id;
this.label = label;
this.colors = colors;
product = label.charAt(0);
}
@Override
@ -62,4 +67,17 @@ public final class Line implements Serializable
{
return label.hashCode();
}
public int compareTo(final Line other)
{
final int productThis = PRODUCT_ORDER.indexOf(this.product);
final int productOther = PRODUCT_ORDER.indexOf(other.product);
final int compareProduct = new Integer(productThis >= 0 ? productThis : Integer.MAX_VALUE).compareTo(productOther >= 0 ? productOther
: Integer.MAX_VALUE);
if (compareProduct != 0)
return compareProduct;
return label.compareTo(other.label);
}
}