water.rapids.ast.prims.string

Class AstToLower

java.lang.Object

water.Iced<AstRoot>

water.rapids.ast.AstRoot

water.rapids.ast.AstPrimitive

water.rapids.ast.prims.string.AstToLower

All Implemented Interfaces:

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

public class AstToLower
extends AstPrimitive

Accepts a frame with a single string column. Returns a new string column containing the results of the toLower method on each string in the target column.

toLower - Converts all of the characters in this String to lower case.

See Also:

Serialized Form

Field Summary

Fields inherited from class water.rapids.ast.AstRoot

CONSTS, PRIMS

Constructor Summary

Constructors

Constructor and Description
AstToLower()

Method Summary

Methods

Modifier and Type	Method and Description
Val	apply(Env env, Env.StackHelp stk, AstRoot[] asts)
java.lang.String[]	args()
int	nargs()
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

AstToLower

public AstToLower()

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

apply

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

Overrides:

apply in class AstRoot