Package org.aksw.faraday_cage.parameter

Class ParameterMapImpl

java.lang.Object

org.aksw.faraday_cage.parameter.ParameterMapImpl

All Implemented Interfaces:

ParameterMap

public class ParameterMapImpl
extends Object
implements ParameterMap

Default implementation of ParameterMap

Field Summary

Fields inherited from interface org.aksw.faraday_cage.parameter.ParameterMap

EMPTY_INSTANCE

Constructor Summary

Constructors

Constructor	Description
ParameterMapImpl(Parameter... p)	Construct this ParameterMapImpl for the given Parameter... p

Method Summary

Modifier and Type	Method	Description
Set<Parameter>	getAllParameters()
<T> T	getValue(Parameter p)	Get the value for the given parameter.
<T> T	getValue(Parameter p, T defaultValue)	Get the value for the given parameter, or the defaultValue, if it has not been set.
ParameterMap	init(Resource r)	Initialize this ParameterMap, making it immutable and enabling the getters.
ParameterMap	setValue(Parameter p, Object o)	Directly set a value for a parameter.

Methods inherited from class java.lang.Object

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

Constructor Detail

ParameterMapImpl

public ParameterMapImpl(Parameter... p)

Construct this ParameterMapImpl for the given Parameter... p

Parameters:

p - an arbitrary number of parameters as a vararg

Method Detail

getAllParameters

public Set<Parameter> getAllParameters()

Specified by:

getAllParameters in interface ParameterMap

Returns:

a list of this ParameterMaps supported parameters

getValue

public <T> T getValue(Parameter p,
                      T defaultValue)
               throws IllegalStateException

Description copied from interface: ParameterMap

Get the value for the given parameter, or the defaultValue, if it has not been set. Makes use of return type inference to avoid manual casting.

Specified by:

getValue in interface ParameterMap

Type Parameters:

T - this methods generic return type

Parameters:

p - the parameter to get

defaultValue - a defaultValue as fallback

Returns:

defaultVaue if the value has not been set or has been set to null; otherwise, the value of parameter p

Throws:

IllegalStateException - if this ParameterMap has not been initialized yet

getValue

public <T> T getValue(Parameter p)
               throws IllegalStateException

Description copied from interface: ParameterMap

Get the value for the given parameter. Makes use of return type inference to avoid manual casting.

Specified by:

getValue in interface ParameterMap

Type Parameters:

T - this methods generic return type

Parameters:

p - the parameter to get

Returns:

the value for the given parameter

Throws:

IllegalStateException - if this ParameterMap has not been initialized yet

init

public ParameterMap init(Resource r)

Description copied from interface: ParameterMap

Initialize this ParameterMap, making it immutable and enabling the getters.

Specified by:

init in interface ParameterMap

Parameters:

r - if not null, this Resource and its corresponding subgraph will be used for automatic parameter value assignment

Returns:

this ParameterMap, for method chaining

setValue

public ParameterMap setValue(Parameter p,
                             Object o)
                      throws IllegalStateException

Description copied from interface: ParameterMap

Directly set a value for a parameter.

Specified by:

setValue in interface ParameterMap

Parameters:

p - the parameter which should be set

o - the value to set for the given parameter

Returns:

this ParameterMap, for method chaining

Throws:

IllegalStateException - if this ParameterMap has already been initialized