com.sdm.quasar.client.jsf.binding
Interface ValueResolver

public interface ValueResolver

The ValueResolver defines the data binding to an object that is not resolved by JSF (e.g. a data manager). It encapsulates the access to a value referenced by a keyword.

Author:

Martin Haft

Method Summary

boolean	canModifyValue(java.lang.String keyword)
java.lang.Object	getValue(java.lang.String keyword) Resolves the keyword to its referenced value.
java.lang.Class	getValueType(java.lang.String keyword)
boolean	hasValue(java.lang.String keyword) Checks, if this ValueResolver can resolve the given keyword.
void	setValue(java.lang.String keyword, java.lang.Object value) Sets a new value for the referenced keyword

Method Detail

hasValue

public boolean hasValue(java.lang.String keyword)

Checks, if this ValueResolver can resolve the given keyword.

Parameters:

keyword - the keyword to be resolved

Returns:

true, iff the keyword can be resolved

getValueType

public java.lang.Class getValueType(java.lang.String keyword)

Parameters:

keyword - the keyword to be resolve

Returns:

the class of the resolved value

Throws:

java.lang.RuntimeException - if the keyword can not be resolved by this. Use #canResolve(String) to check.

getValue

public java.lang.Object getValue(java.lang.String keyword)

Resolves the keyword to its referenced value.

Parameters:

keyword - the keyword to be resolve

Returns:

the resolved object

Throws:

java.lang.RuntimeException - if the keyword can not be resolved by this. Use #canResolve(String) to check.

canModifyValue

public boolean canModifyValue(java.lang.String keyword)

Parameters:

keyword - the keyword to be resolve

Returns:

true, if the value, referenced by the keyword, can be modified

setValue

public void setValue(java.lang.String keyword,
                     java.lang.Object value)

Sets a new value for the referenced keyword

Parameters:

keyword - the keyword to be resolve

value - the new value

Throws:

java.lang.RuntimeException - if the keyword can not be resolved by this or the value can not be modified. Use #canResolve(String) or canModifyValue(String) to check.