org.esa.snap.core.jexp

Class Term.Const

java.lang.Object

org.esa.snap.core.jexp.Term

org.esa.snap.core.jexp.Term.Const

Direct Known Subclasses:

Term.ConstB, Term.ConstD, Term.ConstI, Term.ConstS

Enclosing class:

Term

public abstract static class Term.Const
extends Term

A boolean constant, e.g. true or false.

Nested Class Summary

Nested classes/interfaces inherited from class org.esa.snap.core.jexp.Term

Term.Add, Term.AndB, Term.AndI, Term.Assign, Term.Binary, Term.BinaryB, Term.BinaryI, Term.BinaryN, Term.Call, Term.Cond, Term.Const, Term.ConstB, Term.ConstD, Term.ConstI, Term.ConstS, Term.Div, Term.EqB, Term.EqD, Term.EqI, Term.GeD, Term.GeI, Term.GtD, Term.GtI, Term.LeD, Term.LeI, Term.LtD, Term.LtI, Term.Mod, Term.Mul, Term.Neg, Term.NEqB, Term.NEqD, Term.NEqI, Term.NotB, Term.NotI, Term.Op, Term.OrB, Term.OrI, Term.Ref, Term.Sub, Term.Unary, Term.UnaryB, Term.UnaryI, Term.UnaryN, Term.XOrI

Field Summary

Fields inherited from class org.esa.snap.core.jexp.Term

TYPE_B, TYPE_D, TYPE_I, TYPE_S

Constructor Summary

Constructors

Constructor and Description
Const()

Method Summary

Modifier and Type	Method and Description
int	compare(Term other)
boolean	evalB(EvalEnv env) Evaluates this term to a boolean value.
double	evalD(EvalEnv env) Evaluates this term to a double value.
int	evalI(EvalEnv env) Evaluates this term to an int value.
String	evalS(EvalEnv env) Evaluates this term to a String value.
boolean	isConst()
int	pre()
protected abstract boolean	toB()
protected abstract double	toD()
protected abstract int	toI()
protected abstract String	toS()

Methods inherited from class org.esa.snap.core.jexp.Term

accept, getChildren, getRetType, isB, isD, isI, isN, isS, toB, toB, toD, toI, toI, toS, toS, toS, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Const

public Const()

Method Detail

evalB

public boolean evalB(EvalEnv env)

Description copied from class: Term

Evaluates this term to a boolean value.

Specified by:

evalB in class Term

Parameters:

env - the application dependant environment.

Returns:

a boolean value

toB

protected abstract boolean toB()

evalI

public int evalI(EvalEnv env)

Description copied from class: Term

Evaluates this term to an int value.

Specified by:

evalI in class Term

Parameters:

env - the application dependant environment.

Returns:

an int value

toI

protected abstract int toI()

evalD

public double evalD(EvalEnv env)

Description copied from class: Term

Evaluates this term to a double value.

Specified by:

evalD in class Term

Parameters:

env - the application dependant environment.

Returns:

a double value

toD

protected abstract double toD()

evalS

public String evalS(EvalEnv env)

Description copied from class: Term

Evaluates this term to a String value. The default implementation simply returns the value of Term.toString().

Overrides:

evalS in class Term

Parameters:

env - the application dependant environment.

Returns:

a String value

toS

protected abstract String toS()

isConst

public final boolean isConst()

Specified by:

isConst in class Term

Returns:

true, if this term evaluates to the same constant value regardless of any EvalEnv, even null.

compare

public final int compare(Term other)

Specified by:

compare in class Term

pre

public int pre()

Specified by:

pre in class Term