org.mvel2.integration
Interface VariableResolver

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

ClassImportResolver, ItemResolverFactory.ItemResolver, MapVariableResolver, SimpleValueResolver, StaticMethodImportResolver

public interface VariableResolver
extends java.io.Serializable

A variable resolver is responsible for physically accessing a variable, for either read or write. VariableResolver's are obtained via a VariableResolverFactory.

Method Summary

int	getFlags() Returns the bitset of special variable flags.
java.lang.String	getName() Returns the name of external variable.
java.lang.Class	getType() This should return the type of the variable.
java.lang.Object	getValue() Returns the physical target value of the variable.
void	setStaticType(java.lang.Class type)
void	setValue(java.lang.Object value) Sets the value of the physical target value.

Method Detail

getName

java.lang.String getName()

Returns the name of external variable.

Returns:

A string representing the variable name.

getType

java.lang.Class getType()

This should return the type of the variable. However, this is not completely necessary, and is particularily only of benefit to systems that require use of MVEL's strict typing facilities. In most cases, this implementation can simply return: Object.class

Returns:

A Class instance representing the type of the target variable.

setStaticType

void setStaticType(java.lang.Class type)

getFlags

int getFlags()

Returns the bitset of special variable flags. Internal use only. This should just return 0 in custom implentations.

Returns:

Bitset of special flags.

getValue

java.lang.Object getValue()

Returns the physical target value of the variable.

Returns:

The actual variable value.

setValue

void setValue(java.lang.Object value)

Sets the value of the physical target value.

Parameters:

value - The new value.