package org.apache.lucene.codecs.memory;
import java.io.IOException;
import org.apache.lucene.index.SortedDocValues;
import org.apache.lucene.util.BytesRef;
@Deprecated
final class LegacySortedDocValuesWrapper extends SortedDocValues {
private final LegacySortedDocValues values;
private final int maxDoc;
private int docID = -1;
private int ord;
public LegacySortedDocValuesWrapper(LegacySortedDocValues values, int maxDoc) {
this.values = values;
this.maxDoc = maxDoc;
}
@Override
public int docID() {
return docID;
}
@Override
public int nextDoc() {
assert docID != NO_MORE_DOCS;
docID++;
while (docID < maxDoc) {
ord = values.getOrd(docID);
if (ord != -1) {
return docID;
}
docID++;
}
docID = NO_MORE_DOCS;
return NO_MORE_DOCS;
}
@Override
public int advance(int target) {
if (target < docID) {
throw new IllegalArgumentException("cannot advance backwards: docID=" + docID + " target=" + target);
}
if (target >= maxDoc) {
this.docID = NO_MORE_DOCS;
} else {
this.docID = target-1;
nextDoc();
}
return docID;
}
@Override
public boolean advanceExact(int target) throws IOException {
docID = target;
ord = values.getOrd(docID);
return ord != -1;
}
@Override
public long cost() {
return 0;
}
@Override
public int ordValue() {
return ord;
}
@Override
public BytesRef lookupOrd(int ord) {
return values.lookupOrd(ord);
}
@Override
public int getValueCount() {
return values.getValueCount();
}
}