public void setValue(StringValue value, int offset, int len) {
		Validate.notNull(value);
		setValue(value.value, offset, len);
	}
public void setValue ( StringValue value , int offset , int len ) { Validate . notNull ( value ) ; setValue ( value . value , offset , len ) ; }
Sets the value of the StringValue to a substring of the given string.

@param value The new string value.
@param offset The position to start the substring.
@param len The length of the substring.