water.rapids.ast.prims.reducers

Class AstCumu

java.lang.Object

water.Iced<AstRoot>

water.rapids.ast.AstRoot

water.rapids.ast.AstPrimitive

water.rapids.ast.prims.reducers.AstCumu

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, Freezable<AstRoot>

Direct Known Subclasses:

AstCumMax, AstCumMin, AstCumProd, AstCumSum

public abstract class AstCumu
extends AstPrimitive

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	AstCumu.CumuTask

Field Summary

Fields inherited from class water.rapids.ast.AstRoot

CONSTS, PRIMS

Constructor Summary

Constructors

Constructor and Description
AstCumu()

Method Summary

Methods

Modifier and Type	Method and Description
ValFrame	apply(Env env, Env.StackHelp stk, AstRoot[] asts)
java.lang.String[]	args()
abstract double	init()
int	nargs()
abstract double	op(double l, double r)
java.lang.String	str()

Methods inherited from class water.rapids.ast.AstPrimitive

description, example, exec

Methods inherited from class water.rapids.ast.AstRoot

columns, newAstFrame, newAstStr, toString

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

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

Constructor Detail

AstCumu

public AstCumu()

Method Detail

args

public java.lang.String[] args()

Specified by:

args in class AstPrimitive

nargs

public int nargs()

Specified by:

nargs in class AstRoot

str

public java.lang.String str()

Specified by:

str in class AstRoot

op

public abstract double op(double l,
        double r)

init

public abstract double init()

apply

public ValFrame apply(Env env,
             Env.StackHelp stk,
             AstRoot[] asts)

Overrides:

apply in class AstRoot