Numeric range search

Numeric range search or numerical search allows you to search in documents any integer numbers in the range from 0 to 9223372036854775807 (Long.MAX_VALUE). Please note that the number in the text must not be separated by spaces, otherwise it will already be several numbers. A search query of this type is specified as follows:

number ~~ number

The example below demonstrates the numeric range search in text and object forms.

String indexFolder = "c:\\MyIndex\\";
String documentsFolder = "c:\\MyDocuments\\";
// Creating an index in the specified folder
Index index = new Index(indexFolder);
// Indexing documents from the specified folder
// Search with text query
SearchResult result1 ="500 ~~ 600");
// Search with object query
SearchQuery query2 = SearchQuery.createNumericRangeQuery(500, 600);
SearchResult result2 =;

More resources

GitHub examples

You may easily run the code from documentation articles and see the features in action in our GitHub examples:

Free online document search App

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You are welcome to search over your PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX and more with our free online Free Online Document Search App.