@Override
public String toString() {
final TokenBuilder tb = new TokenBuilder().add(var.toString()).add(' ').add(ASSIGN);
tb.add(' ').add(expr.toString());
if (coll != null) tb.add(' ').add(COLLATION).add(" \"").add(coll.uri()).add('"');
return tb.toString();
}
@Override
public String toString() {
final int es = expr.length;
final TokenBuilder tb = new TokenBuilder(expr[es - 1].toString()).add('(');
for (int e = 0; e < es - 1; e++) {
tb.add(expr[e].toString());
if (e < es - 2) tb.add(", ");
}
return tb.add(')').toString();
}
@Override
public String toString() {
final TokenBuilder tb = new TokenBuilder("map { ");
boolean key = true;
for (final Expr e : expr) {
tb.add(key ? tb.size() > 6 ? ", " : "" : ":=").add(e.toString());
key ^= true;
}
return tb.add(" }").toString();
}
/**
* Caches and returns all unique tokens specified in a query.
*
* @param list token list
* @return token set
*/
private TokenSet unique(final TokenList list) {
// cache all query tokens in a set (duplicates are removed)
final TokenSet ts = new TokenSet();
switch (mode) {
case ALL:
case ANY:
for (final byte[] t : list) ts.add(t);
break;
case ALL_WORDS:
case ANY_WORD:
final FTLexer l = new FTLexer(ftt.opt);
for (final byte[] t : list) {
l.init(t);
while (l.hasNext()) ts.add(l.nextToken());
}
break;
case PHRASE:
final TokenBuilder tb = new TokenBuilder();
for (final byte[] t : list) tb.add(t).add(' ');
ts.add(tb.trim().finish());
}
return ts;
}