net.sourceforge.plantuml.evalex

Class AbstractLazyFunction

java.lang.Object

net.sourceforge.plantuml.evalex.AbstractLazyFunction

All Implemented Interfaces:

LazyFunction

Direct Known Subclasses:

AbstractFunction, Expression.LazyFunction

public abstract class AbstractLazyFunction
extends java.lang.Object
implements LazyFunction

Abstract implementation of a lazy function which implements all necessary methods with the exception of the main logic.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	booleanFunction Whether this function is a boolean function.
protected java.lang.String	name Name of this function.
protected int	numParams Number of parameters expected for this function.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractLazyFunction(java.lang.String name, int numParams) Creates a new function with given name and parameter count.
protected	AbstractLazyFunction(java.lang.String name, int numParams, boolean booleanFunction) Creates a new function with given name and parameter count.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getName() Gets the name of this function.
int	getNumParams() Gets the number of parameters this function accepts.
boolean	isBooleanFunction() Gets whether this function evaluates to a boolean expression.
boolean	numParamsVaries() Gets whether the number of accepted parameters varies.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sourceforge.plantuml.evalex.LazyFunction

lazyEval

Field Detail

name

protected java.lang.String name

Name of this function.

numParams

protected int numParams

Number of parameters expected for this function. -1 denotes a variable number of parameters.

booleanFunction

protected boolean booleanFunction

Whether this function is a boolean function.

Constructor Detail

AbstractLazyFunction

protected AbstractLazyFunction(java.lang.String name,
                               int numParams,
                               boolean booleanFunction)

Creates a new function with given name and parameter count.

Parameters:

name - The name of the function.

numParams - The number of parameters for this function. -1 denotes a variable number of parameters.

booleanFunction - Whether this function is a boolean function.

AbstractLazyFunction

protected AbstractLazyFunction(java.lang.String name,
                               int numParams)

Creates a new function with given name and parameter count.

Parameters:

name - The name of the function.

numParams - The number of parameters for this function. -1 denotes a variable number of parameters.

Method Detail

getName

public java.lang.String getName()

Description copied from interface: LazyFunction

Gets the name of this function.

The name is use to invoke this function in the expression.

Specified by:

getName in interface LazyFunction

Returns:

The name of this function.

getNumParams

public int getNumParams()

Description copied from interface: LazyFunction

Gets the number of parameters this function accepts.

A value of -1 denotes that this function accepts a variable number of parameters.

Specified by:

getNumParams in interface LazyFunction

Returns:

The number of parameters this function accepts.

numParamsVaries

public boolean numParamsVaries()

Description copied from interface: LazyFunction

Gets whether the number of accepted parameters varies.

That means that the function does accept an undefined amount of parameters.

Specified by:

numParamsVaries in interface LazyFunction

Returns:

true if the number of accepted parameters varies.

isBooleanFunction

public boolean isBooleanFunction()

Description copied from interface: LazyFunction

Gets whether this function evaluates to a boolean expression.

Specified by:

isBooleanFunction in interface LazyFunction

Returns:

true if this function evaluates to a boolean expression.