/** Constructor, registering statically available XQuery functions. */
private Functions() {
for (final Function def : Function.values()) {
final String dsc = def.desc;
final byte[] ln = token(dsc.substring(0, dsc.indexOf(PAR1)));
final int i = add(new QNm(ln, def.uri()).id());
if (i < 0) Util.notexpected("Function defined twice:" + def);
funcs[i] = def;
}
}
/**
* Checks the list of updates for violations. Updates must be ordered strictly from the highest to
* the lowest PRE value.
*
* <p>A single node must not be affected by more than one {@link Rename}, {@link UpdateValue}
* operation.
*
* <p>A single node must not be affected by more than one destructive operation. These operations
* include {@link Replace}, {@link Delete}.
*/
public void check() {
if (ok || updStructural.size() < 2 && updValue.size() < 2) return;
int i = 0;
while (i + 1 < updStructural.size()) {
final BasicUpdate current = updStructural.get(i);
final BasicUpdate next = updStructural.get(++i);
// check order of location PRE
if (current.location < next.location)
Util.notexpected("Invalid order at location " + current.location);
if (current.location == next.location) {
// check multiple {@link Delete}, {@link Replace}
if (current.destructive() && next.destructive())
Util.notexpected("Multiple deletes/replaces on node " + current.location);
}
}
i = 0;
while (i + 1 < updValue.size()) {
final BasicUpdate current = updValue.get(i++);
final BasicUpdate next = updValue.get(i);
// check order of location PRE
if (current.location < next.location)
Util.notexpected("Invalid order at location " + current.location);
if (current.location == next.location) {
// check multiple {@link Rename}
if (current instanceof Rename && next instanceof Rename)
Util.notexpected("Multiple renames on node " + current.location);
// check multiple {@link UpdateValue}
if (current instanceof UpdateValue && next instanceof UpdateValue)
Util.notexpected("Multiple updates on node " + current.location);
}
}
ok = true;
}
/**
* Returns the index reference for the specified index type.
*
* @param type index type
* @return index
*/
final Index index(final IndexType type) {
switch (type) {
case TAG:
return tagindex;
case ATTNAME:
return atnindex;
case TEXT:
return txtindex;
case ATTRIBUTE:
return atvindex;
case FULLTEXT:
return ftxindex;
case PATH:
return paths;
default:
throw Util.notexpected();
}
}
