local.tomas.expr
Class Variable

java.lang.Object
  local.tomas.expr.Variable

All Implemented Interfaces:

Serializable, Expression

public class Variable
extends Object
implements Expression

Definition of a variable in an expression.

Author:

tomas

See Also:

Serialized Form

Constructor Summary

Variable()
Default constructor.

Variable(String name)
Constructor from name.

Variable(String name, ExpressionType type)
Constructor from name and type.

Method Summary

boolean	equals(Object obj) Compares this object against the specified object.
String	getName() Get variable name.
ExpressionType	getType() Get the type.
<E,F> E	greet(ExpressionWalker<E,F> visitor, F arg) Handle visit of ExpressionWalker.
int	hashCode()
void	setName(String name) Set variable name.
void	setType(ExpressionType type) Set the type.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Variable

public Variable()

Default constructor.

Variable

public Variable(String name,
                ExpressionType type)

Constructor from name and type.

Parameters:

name - variable name

type - variable type

Variable

public Variable(String name)

Constructor from name.

Parameters:

name - variable name

Method Detail

getName

public String getName()

Get variable name.

Returns:

name.

setName

public void setName(String name)

Set variable name.

Parameters:

name - name to set.

getType

public ExpressionType getType()

Get the type.

Returns:

Returns the type.

setType

public void setType(ExpressionType type)

Set the type.

Parameters:

type - The type to set.

greet

public <E,F> E greet(ExpressionWalker<E,F> visitor,
                     F arg)
        throws ExpressionException

Description copied from interface: Expression

Handle visit of ExpressionWalker.

Specified by:

greet in interface Expression

Parameters:

visitor - the ExpressionWalker visiting this object

arg - implementation dependent argument

Returns:

implementation dependent result

Throws:

ExpressionException

equals

public boolean equals(Object obj)

Compares this object against the specified object. The result is true if and only if the argument is not null and is a Variable object with equal name as this object.

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object