com.smartgwt.client.types
Enum SummaryFunctionType

java.lang.Object
  java.lang.Enum<SummaryFunctionType>
      com.smartgwt.client.types.SummaryFunctionType

All Implemented Interfaces:

ValueEnum, Serializable, Comparable<SummaryFunctionType>

public enum SummaryFunctionType
extends Enum<SummaryFunctionType>
implements ValueEnum

Function to produce a summary value based on an array of records and a field definition. An example usage is the 'summary row', where a row is shown at the bottom of the listGrid containing summary information about each column.

SummaryFunctions may be specified in one of 2 ways:

• as an explicit function that takes 3 parameters:
  - records an array of records
  - field the field definition for which the summary is required
• As an predefined SummaryFunctionType type.

Enum Constant Summary

AVG
Iterates through the set of records, picking up all numeric values for the specified field and determining the mean value.

COUNT
Returns a numeric count of the total number of records passed in.

MAX
Iterates through the set of records, picking up all values for the specified field and finding the maximum value.

MIN
Iterates through the set of records, picking up all values for the specified field and finding the minimum value.

MULTIPLIER
Iterates through the set of records, picking up all numeric values for the specified field and multiplying them together.

SUM
Iterates through the set of records, picking up and summing all numeric values for the specified field.

Method Summary

String	getValue()
static SummaryFunctionType	valueOf(String name) Returns the enum constant of this type with the specified name.
static SummaryFunctionType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SUM

public static final SummaryFunctionType SUM

Iterates through the set of records, picking up and summing all numeric values for the specified field. Returns null to indicate invalid summary value if any non numeric field values are encountered.

AVG

public static final SummaryFunctionType AVG

Iterates through the set of records, picking up all numeric values for the specified field and determining the mean value. Returns null to indicate invalid summary value if any non numeric field values are encountered.

MAX

public static final SummaryFunctionType MAX

Iterates through the set of records, picking up all values for the specified field and finding the maximum value. Handles numeric fields and date type fields only. Returns null to indicate invalid summary value if any non numeric/date field values are encountered.

MIN

public static final SummaryFunctionType MIN

Iterates through the set of records, picking up all values for the specified field and finding the minimum value. Handles numeric fields and date type fields only. Returns null to indicate invalid summary value if any non numeric field values are encountered.

MULTIPLIER

public static final SummaryFunctionType MULTIPLIER

Iterates through the set of records, picking up all numeric values for the specified field and multiplying them together. Returns null to indicate invalid summary value if any non numeric field values are encountered.

COUNT

public static final SummaryFunctionType COUNT

Returns a numeric count of the total number of records passed in.

Method Detail

values

public static SummaryFunctionType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SummaryFunctionType c : SummaryFunctionType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SummaryFunctionType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getValue

public String getValue()

Specified by:

getValue in interface ValueEnum