Examples with NotItem com.yahoo.prelude.query.NotItem used on opensource projects

Example 6 with NotItem

use of com.yahoo.prelude.query.NotItem in project vespa by vespa-engine.

the class YqlParser method buildAnd.

@NonNull
private CompositeItem buildAnd(OperatorNode<ExpressionOperator> ast) {
    AndItem andItem = new AndItem();
    NotItem notItem = new NotItem();
    convertVarArgsAnd(ast, 0, andItem, notItem);
    Preconditions.checkArgument(andItem.getItemCount() > 0, "Vespa does not support AND with no logically positive branches.");
    if (notItem.getItemCount() == 0) {
        return andItem;
    }
    if (andItem.getItemCount() == 1) {
        notItem.setPositiveItem(andItem.getItem(0));
    } else {
        notItem.setPositiveItem(andItem);
    }
    return notItem;
}

Example 7 with NotItem

use of com.yahoo.prelude.query.NotItem in project vespa by vespa-engine.

the class SerializeItemTestCase method serialize_not_item.

@Test
public void serialize_not_item() throws ParseException {
    NotItem notItem = new NotItem();
    {
        notItem.addItem(new WordItem("first"));
        notItem.addItem(new WordItem("second"));
    }
    serializeThenParse(notItem);
}

Example 8 with NotItem

use of com.yahoo.prelude.query.NotItem in project vespa by vespa-engine.

the class VespaSerializerTestCase method testLongAndNot.

@Test
public final void testLongAndNot() {
    NotItem item = new NotItem();
    item.addItem(new WordItem("a"));
    item.addItem(new WordItem("b"));
    item.addItem(new WordItem("c"));
    item.addItem(new WordItem("d"));
    String q = VespaSerializer.serialize(item);
    assertEquals("(default contains ([{\"implicitTransforms\": false}]\"a\")) AND !(default contains ([{\"implicitTransforms\": false}]\"b\") OR default contains ([{\"implicitTransforms\": false}]\"c\") OR default contains ([{\"implicitTransforms\": false}]\"d\"))", q);
}

Example 9 with NotItem

use of com.yahoo.prelude.query.NotItem in project vespa by vespa-engine.

the class QueryRewrite method extractAndNot.

private static CompositeItem extractAndNot(AndItem parent) {
    NotItem theOnlyNot = null;
    for (int i = 0; i < parent.getItemCount(); i++) {
        Item child = parent.getItem(i);
        if (child instanceof NotItem) {
            NotItem thisNot = (NotItem) child;
            parent.setItem(i, thisNot.getPositiveItem());
            if (theOnlyNot == null) {
                theOnlyNot = thisNot;
                theOnlyNot.setPositiveItem(parent);
            } else {
                for (int j = 1; j < thisNot.getItemCount(); j++) {
                    theOnlyNot.addNegativeItem(thisNot.getItem(j));
                }
            }
        }
    }
    return (theOnlyNot != null) ? theOnlyNot : parent;
}

Example 10 with NotItem

use of com.yahoo.prelude.query.NotItem in project vespa by vespa-engine.

the class ParseTestCase method testNegativeWordsParsing2.

@Test
public void testNegativeWordsParsing2() {
    Item root = tester.assertParsed("+a -b", "+a -b", Query.Type.WEB);
    assertTrue(((NotItem) root).getItem(0).isProtected());
    assertTrue(((NotItem) root).getItem(1).isProtected());
}