/* (non-Javadoc)
* @see org.exist.xquery.value.AtomicValue#compareTo(int, org.exist.xquery.value.AtomicValue)
*/
public boolean compareTo(Collator collator, int operator, AtomicValue other)
throws XPathException {
if (other.isEmpty()) return false;
if (Type.subTypeOf(other.getType(), Type.STRING)
|| Type.subTypeOf(other.getType(), Type.UNTYPED_ATOMIC)) {
int cmp = Collations.compare(collator, value, other.getStringValue());
switch (operator) {
case Constants.EQ:
return cmp == 0;
case Constants.NEQ:
return cmp != 0;
case Constants.LT:
return cmp < 0;
case Constants.LTEQ:
return cmp <= 0;
case Constants.GT:
return cmp > 0;
case Constants.GTEQ:
return cmp >= 0;
default:
throw new XPathException("Type error: cannot apply operand to string value");
}
}
throw new XPathException(
"Type error: operands are not comparable; expected xdt:untypedAtomic; got "
+ Type.getTypeName(other.getType()));
}
/* (non-Javadoc)
* @see org.exist.xquery.value.AtomicValue#min(org.exist.xquery.value.AtomicValue)
*/
public AtomicValue min(Collator collator, AtomicValue other) throws XPathException {
if (Type.subTypeOf(other.getType(), Type.UNTYPED_ATOMIC))
return Collations.compare(collator, value, ((UntypedAtomicValue) other).value) < 0
? this
: other;
else return Collations.compare(collator, value, other.getStringValue()) < 0 ? this : other;
}
/* (non-Javadoc)
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
public int compareTo(Object o) {
final AtomicValue other = (AtomicValue) o;
if (Type.subTypeOf(other.getType(), Type.DATE_TIME))
try {
// TODO : find something that will consume less resources
return calendar.compare(
TimeUtils.getInstance().newXMLGregorianCalendar(other.getStringValue()));
} catch (XPathException e) {
System.out.println("Failed to get string value of '" + other + "'");
// Why not ?
return Constants.SUPERIOR;
}
else return getType() > other.getType() ? Constants.SUPERIOR : Constants.INFERIOR;
}
public MemoryNodeSet toMemNodeSet() throws XPathException {
if (count == 0) {
return MemoryNodeSet.EMPTY;
}
if (itemType == Type.ANY_TYPE || !Type.subTypeOf(itemType, Type.NODE)) {
throw new XPathException(
"Type error: the sequence cannot be converted into"
+ " a node set. Item type is "
+ Type.getTypeName(itemType));
}
NodeValue v;
for (int i = 0; i <= count; i++) {
v = (NodeValue) items[i];
if (v.getImplementationType() == NodeValue.PERSISTENT_NODE) {
return null;
}
}
return new ValueSequence(this);
}
/* (non-Javadoc)
* @see org.exist.xquery.value.Sequence#toNodeSet()
*/
public NodeSet toNodeSet() throws XPathException {
// for this method to work, all items have to be nodes
if (itemType != Type.ANY_TYPE && Type.subTypeOf(itemType, Type.NODE)) {
final NodeSet set = new ExtArrayNodeSet();
// We can't make it from an ExtArrayNodeSet (probably because it is sorted ?)
// NodeSet set = new ArraySet(100);
for (int i = 0; i < this.count; i++) {
NodeValue v = null;
final Entry temp = items[i];
v = (NodeValue) temp.item;
if (v.getImplementationType() != NodeValue.PERSISTENT_NODE) {
set.add((NodeProxy) v);
} else {
set.add((NodeProxy) v);
}
}
return set;
} else {
throw new XPathException(
"Type error: the sequence cannot be converted into"
+ " a node set. Item type is "
+ Type.getTypeName(itemType));
}
}
