The StringLength field expression returns the length of a string argument.
STRINGLENGTH(FIELDEXPRESSION) AS ALIAS
- FIELDEXPRESSION - The stored field to operate on.
- ALIAS - Field name for the resulting value.
STRINGLENGTH(text) as text.length
QueryRequest request = new QueryRequest("*:*)");
request.addField(new StringLength(new StoredField("text")).as("text.length"));
// ... (Perform Search)