jadex.runtime
Interface IExpression

All Superinterfaces:

IElement

All Known Subinterfaces:

ICondition, IQuery

public interface IExpression

extends IElement

The common interface for expressions.

Method Summary

Object	execute() Execute the query.
Object	execute(String name, Object value) Execute the query using a local parameter.
Object	execute(Tuple[] parameters) Execute the query using local parameters.
Object	getParameter(String name) Get an expression parameter.
Object	getValue() Evaluate the expression.
void	refresh() Refresh the cached expression value.
void	setParameter(String name, Object value) Set an expression parameter.

Methods inherited from interface jadex.runtime.IElement

getModelElement, getName

Method Detail

getValue

public Object getValue()

Evaluate the expression.

Returns:

The value of the expression.

refresh

public void refresh()

Refresh the cached expression value.

setParameter

public void setParameter(String name,
                         Object value)

Set an expression parameter.

Parameters:

name - The parameter name.

value - The parameter value.

getParameter

public Object getParameter(String name)

Get an expression parameter.

Parameters:

name - The parameter name.

Returns:

The parameter value.

execute

public Object execute()

Execute the query.

Returns:

the result value of the query.

execute

public Object execute(String name,
                      Object value)

Execute the query using a local parameter.

Parameters:

name - The name of the local parameter.

value - The value of the local parameter.

Returns:

the result value of the query.

execute

public Object execute(Tuple[] parameters)

Execute the query using local parameters.

Parameters:

parameters - The local parameters (array of name-value pairs).

Returns:

the result value of the query.