Package org.esa.snap.core.jexp

Class Term.Ref

java.lang.Object

org.esa.snap.core.jexp.Term

org.esa.snap.core.jexp.Term.Ref

Enclosing class:

Term

public static final class Term.Ref
extends Term

A reference to a Symbol.

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

Modifier and Type	Field	Description
protected final Symbol	symbol

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

TYPE_B, TYPE_D, TYPE_I, TYPE_S

Constructor Summary

Constructors

Constructor	Description
Ref(Symbol symbol)

Method Summary

Modifier and Type	Method	Description
<T> T	accept(TermVisitor<T> visitor)	Visitor support.
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.
int	getRetType()	Gets the term's "natural" return type.
Symbol	getSymbol()
Variable	getVariable()
boolean	isConst()
int	pre()
String	toString()	Returns a string representation of this term which can be used for debugging.

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

getChildren, isB, isD, isI, isN, isS, toB, toB, toD, toI, toI, toS, toS, toS

Methods inherited from class java.lang.Object

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

Field Details

symbol

protected final Symbol symbol

Constructor Details

Ref

public Ref(Symbol symbol)

Method Details

getSymbol

public Symbol getSymbol()

getVariable

public Variable getVariable()

getRetType

public int getRetType()

Description copied from class: Term

Gets the term's "natural" return type.

Specified by:

getRetType in class Term

Returns:

the type, should always be one of the TYPE_X constants defined in this class.

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

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

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

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

toString

public String toString()

Description copied from class: Term

Returns a string representation of this term which can be used for debugging.

Specified by:

toString in class Term

accept

public <T> T accept(TermVisitor<T> visitor)

Description copied from class: Term

Visitor support.

Specified by:

accept in class Term

Parameters:

visitor - A visitor.

isConst

public 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 int compare(Term other)

Specified by:

compare in class Term

pre

public int pre()

Specified by:

pre in class Term