package java.text;
public final class CollationKey implements Comparable
{
public int compareTo (CollationKey target)
{
int max = Math.min(key.length, target.key.length);
for (int i = 0; i < max; ++i)
{
if (key[i] != target.key[i])
return key[i] - target.key[i];
}
return key.length - target.key.length;
}
public int compareTo (Object o)
{
return compareTo ((CollationKey) o);
}
public boolean equals (Object obj)
{
if (! (obj instanceof CollationKey))
return false;
CollationKey ck = (CollationKey) obj;
if (key.length != ck.key.length)
return false;
for (int i = 0; i < key.length; ++i)
if (key[i] != ck.key[i])
return false;
return true;
}
public String getSourceString ()
{
return originalText;
}
public int hashCode ()
{
long h = originalText.hashCode();
for (int i = key.length - 1; i >= 0; --i)
h ^= key[i] * (i + 1);
return (int) ((h >> 32) ^ h);
}
public byte[] toByteArray ()
{
byte[] r = new byte[4 * key.length];
int off = 0;
for (int i = 0; i < key.length; ++i)
{
r[off++] = (byte) ((key[i] >>> 24) & 255);
r[off++] = (byte) ((key[i] >>> 16) & 255);
r[off++] = (byte) ((key[i] >>> 8) & 255);
r[off++] = (byte) ((key[i] ) & 255);
}
return r;
}
CollationKey (CollationElementIterator iter, String originalText,
int strength)
{
this.originalText = originalText;
int size = 0;
while (RuleBasedCollator.next(iter, strength)
!= CollationElementIterator.NULLORDER)
++size;
iter.reset();
key = new int[size];
for (int i = 0; i < size; i++)
key[i] = RuleBasedCollator.next(iter, strength);
}
private String originalText;
private int[] key;
}