Package com.singularsys.jep.misc.dictionary

Class KeysIterable

java.lang.Object

com.singularsys.jep.functions.PostfixMathCommand

com.singularsys.jep.functions.UnaryFunction

com.singularsys.jep.misc.dictionary.KeysIterable

All Implemented Interfaces:

PostfixMathCommandI, Serializable

public class KeysIterable
extends UnaryFunction

Return an Iterable<Object> for the keys of a map.

Since:

Jep 4.1

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.singularsys.jep.functions.UnaryFunction

UnaryFunction.FunctionWithException<T>

Field Summary

Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand

curNumberOfParameters, description, name, NaN, numberOfParameters

Constructor Summary

Constructors

Constructor	Description
KeysIterable()	Constructor

Method Summary

Modifier and Type	Method	Description
Object	eval(Object l)	Evaluate the function
protected Iterable<Object>	eval(List<Object> list)
protected Iterable<Object>	eval(Map<Object,Object> map)

Methods inherited from class com.singularsys.jep.functions.UnaryFunction

instanceOf, instanceOf, instanceOf, instanceOf, run

Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, asType, checkNumberOfParameters, getDescription, getDescription, getDescriptionWithType, getName, getNumberOfParameters, setCurNumberOfParameters, setDescription, setName, toString, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

KeysIterable

public KeysIterable()

Constructor

Method Details

eval

public Object eval(Object l)
            throws EvaluationException

Description copied from class: UnaryFunction

Evaluate the function

Specified by:

eval in class UnaryFunction

Parameters:

l - the single argument passed in

Returns:

the result of the function

Throws:

EvaluationException - on error

eval

protected Iterable<Object> eval(List<Object> list)
                         throws EvaluationException

Throws:

EvaluationException

eval

protected Iterable<Object> eval(Map<Object,Object> map)
                         throws EvaluationException

Throws:

EvaluationException