CountOperator

CountOperator counts the number of occurrences of each unique key, or the number of input lines if there is no unique key.

CountOperator differs from most other operators in that it doesn't summarize a specific field on the line. Instead it is summarizing a property of the unique key itself. For this reason it doesn't derive from SingleFieldOperator.

class CountOperator : ZeroFieldOperator {

this();

ZeroFieldCalculator makeCalculator();

class CountCalculator;

}

Constructors

this this(): Undocumented in source.

Members

Classes

CountCalculator class CountCalculator: Undocumented in source.

Functions

makeCalculator ZeroFieldCalculator makeCalculator(): Undocumented in source. Be warned that the author may not have intended to support it.

Inherited Members

From ZeroFieldOperator

setCustomHeader void setCustomHeader(string customHeader): Undocumented in source. Be warned that the author may not have intended to support it.
allowCustomHeader bool allowCustomHeader(): Undocumented in source. Be warned that the author may not have intended to support it.
name string name(): Undocumented in source. Be warned that the author may not have intended to support it.
header string header(): Undocumented in source. Be warned that the author may not have intended to support it.
processHeaderLine void processHeaderLine(char[][] fields): Undocumented in source. Be warned that the author may not have intended to support it.
numericFieldsToSave size_t[] numericFieldsToSave(): Undocumented in source. Be warned that the author may not have intended to support it.
textFieldsToSave size_t[] textFieldsToSave(): Undocumented in source. Be warned that the author may not have intended to support it.
makeCalculator ZeroFieldCalculator makeCalculator(): Undocumented in source.