prefuse.data.expression
Interface Function

All Superinterfaces:

Expression

All Known Implementing Classes:

FunctionExpression, GroupExpression, GroupSizeFunction, HoverPredicate, InGroupPredicate, QueryExpression, SearchPredicate, ValidatedPredicate, VisiblePredicate

public interface Function
extends Expression

Expression sub-interface representing a function in the prefuse expression language.

Author:

jeffrey heer

Field Summary

static int

VARARGS Constant indicating a vriable argument count

Method Summary

void	addParameter(Expression e) Add a parameter value sub-expression to this function.
java.lang.String	getName() Get the name of this function.
int	getParameterCount() Get the maximum number of parameters accepted by this Function.

Methods inherited from interface prefuse.data.expression.Expression

addExpressionListener, get, getBoolean, getDouble, getFloat, getInt, getLong, getType, removeExpressionListener, visit

Field Detail

VARARGS

static final int VARARGS

Constant indicating a vriable argument count

See Also:

Constant Field Values

Method Detail

getName

java.lang.String getName()

Get the name of this function.

Returns:

the function name

addParameter

void addParameter(Expression e)

Add a parameter value sub-expression to this function.

Parameters:

e - the parameter sub-expression

getParameterCount

int getParameterCount()

Get the maximum number of parameters accepted by this Function.

Returns:

the maximum number of parametes accepted, or VARARGS is the number is variable.