private static Lucene.Net.Search.Query HandleStartsWith(Query query, MethodExpression expression, QueryMetadata metadata, BlittableJsonReaderObject parameters)
{
var fieldName = ExtractIndexFieldName(query, parameters, expression.Arguments[0], metadata);
var(value, valueType) = GetValue(fieldName, query, metadata, parameters, (ValueExpression)expression.Arguments[1]);
if (valueType != ValueTokenType.String)
{
ThrowMethodExpectsArgumentOfTheFollowingType("startsWith", ValueTokenType.String, valueType, metadata.QueryText, parameters);
}
var valueAsString = GetValueAsString(value);
if (string.IsNullOrEmpty(valueAsString))
{
valueAsString = LuceneQueryHelper.Asterisk;
}
else
{
valueAsString += LuceneQueryHelper.Asterisk;
}
return(LuceneQueryHelper.Term(fieldName, valueAsString, LuceneTermType.Prefix));
}
private static Lucene.Net.Search.Query HandleExists(Query query, BlittableJsonReaderObject parameters, MethodExpression expression, QueryMetadata metadata)
{
var fieldName = ExtractIndexFieldName(query, parameters, expression.Arguments[0], metadata);
return(LuceneQueryHelper.Term(fieldName, LuceneQueryHelper.Asterisk, LuceneTermType.WildCard));
}