water.rapids.ast

Class AstPrimitive

java.lang.Object

water.Iced<AstRoot>

water.rapids.ast.AstRoot

water.rapids.ast.AstPrimitive

All Implemented Interfaces:

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

Direct Known Subclasses:

AstAll, AstAny, AstAnyFactor, AstAnyNa, AstAppend, AstApply, AstAsCharacter, AstAsDate, AstAsFactor, AstAsNumeric, AstAssign, AstBinOp, AstCBind, AstColNames, AstColPySlice, AstColSlice, AstColumnsByType, AstComma, AstCorrelation, AstCountMatches, AstCountSubstringsWords, AstCumu, AstCut, AstDdply, AstDiffLag1, AstEntropy, AstFilterNaCols, AstFlatten, AstFunction, AstGetrow, AstGetTimeZone, AstGroup, AstGroupedPermute, AstHist, AstIfElse, AstImpute, AstIsCharacter, AstIsFactor, AstIsNa, AstIsNumeric, AstKFold, AstKurtosis, AstLevels, AstListTimeZones, AstLs, AstLStrip, AstMad, AstMatch, AstMean, AstMedian, AstMerge, AstMktime, AstMMult, AstMode, AstModuloKFold, AstNaCnt, AstNaOmit, AstNcol, AstNLevels, AstNrow, AstProd, AstProdNa, AstQtile, AstRBind, AstRectangleAssign, AstReducerOp, AstReLevel, AstRename, AstReplaceAll, AstReplaceFirst, AstRepLen, AstRm, AstRowSlice, AstRStrip, AstRunif, AstScale, AstSdev, AstSeq, AstSeqLen, AstSetDomain, AstSetLevel, AstSetTimeZone, AstSkewness, AstSort, AstStratifiedKFold, AstStratifiedSplit, AstStrLength, AstStrSplit, AstSubstring, AstTable, AstTime, AstTmpAssign, AstToLower, AstToUpper, AstTranspose, AstTrim, AstUniOp, AstUnique, AstVariance, AstWhich

public abstract class AstPrimitive
extends AstRoot

A primitive operation. Execution just returns the function. *Application* (not execution) applies the function to the arguments.

See Also:

Serialized Form

Field Summary

Fields inherited from class water.rapids.ast.AstRoot

CONSTS, PRIMS

Constructor Summary

Constructors

Constructor and Description
AstPrimitive()

Method Summary

Methods

Modifier and Type	Method and Description
abstract java.lang.String[]	args()
java.lang.String	description()
java.lang.String	example()
ValFun	exec(Env env)

Methods inherited from class water.rapids.ast.AstRoot

apply, columns, nargs, newAstFrame, newAstStr, str, 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

AstPrimitive

public AstPrimitive()

Method Detail

example

public java.lang.String example()

Specified by:

example in class AstRoot

description

public java.lang.String description()

Specified by:

description in class AstRoot

exec

public ValFun exec(Env env)

Specified by:

exec in class AstRoot

args

public abstract java.lang.String[] args()