Package org.ros.internal.node.parameter

Class DefaultParameterTree

java.lang.Object

org.ros.internal.node.parameter.DefaultParameterTree

All Implemented Interfaces:

ParameterTree

public class DefaultParameterTree
extends Object
implements ParameterTree

Provides access to the ROS ParameterServer.

Author:

kwc@willowgarage.com (Ken Conley), damonkohler@google.com (Damon Kohler)

Method Summary

Modifier and Type	Method	Description
void	addParameterListener(String name, ParameterListener listener)
void	addParameterListener(GraphName name, ParameterListener listener)	Subscribes to changes to the specified parameter.
void	delete(String name)
void	delete(GraphName name)	Deletes a specified parameter.
boolean	getBoolean(String name)
boolean	getBoolean(String name, boolean defaultValue)
boolean	getBoolean(GraphName name)
boolean	getBoolean(GraphName name, boolean defaultValue)
double	getDouble(String name)
double	getDouble(String name, double defaultValue)
double	getDouble(GraphName name)
double	getDouble(GraphName name, double defaultValue)
int	getInteger(String name)
int	getInteger(String name, int defaultValue)
int	getInteger(GraphName name)
int	getInteger(GraphName name, int defaultValue)
List<?>	getList(String name)
List<?>	getList(String name, List<?> defaultValue)
List<?>	getList(GraphName name)
List<?>	getList(GraphName name, List<?> defaultValue)
Map<?,?>	getMap(String name)
Map<?,?>	getMap(String name, Map<?,?> defaultValue)
Map<?,?>	getMap(GraphName name)
Map<?,?>	getMap(GraphName name, Map<?,?> defaultValue)
List<GraphName>	getNames()
String	getString(String name)
String	getString(String name, String defaultValue)
String	getString(GraphName name)
String	getString(GraphName name, String defaultValue)
boolean	has(String name)
boolean	has(GraphName name)
static DefaultParameterTree	newFromNodeIdentifier(NodeIdentifier nodeIdentifier, URI masterUri, NameResolver resolver, ParameterManager parameterManager)
GraphName	search(String name)
GraphName	search(GraphName name)	Search for parameter key on the Parameter Server.
void	set(String name, boolean value)
void	set(String name, double value)
void	set(String name, int value)
void	set(String name, String value)
void	set(String name, List<?> value)
void	set(String name, Map<?,?> value)
void	set(GraphName name, boolean value)
void	set(GraphName name, double value)
void	set(GraphName name, int value)
void	set(GraphName name, String value)
void	set(GraphName name, List<?> value)
void	set(GraphName name, Map<?,?> value)

Methods inherited from class java.lang.Object

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

Method Details

newFromNodeIdentifier

public static DefaultParameterTree newFromNodeIdentifier(NodeIdentifier nodeIdentifier,
 URI masterUri,
 NameResolver resolver,
 ParameterManager parameterManager)

has

public boolean has(GraphName name)

Specified by:

has in interface ParameterTree

Parameters:

name - the parameter name

Returns:

true if a parameter with the given name exists, false otherwise

has

public boolean has(String name)

Specified by:

has in interface ParameterTree

See Also:

• ParameterTree.has(GraphName)

delete

public void delete(GraphName name)

Description copied from interface: ParameterTree

Deletes a specified parameter.

Specified by:

delete in interface ParameterTree

Parameters:

name - the parameter name

delete

public void delete(String name)

Specified by:

delete in interface ParameterTree

See Also:

• ParameterTree.delete(GraphName)

search

public GraphName search(GraphName name)

Description copied from interface: ParameterTree

Search for parameter key on the Parameter Server. Search starts in caller's namespace and proceeds upwards through parent namespaces until the ParameterServer finds a matching key.

Specified by:

search in interface ParameterTree

Parameters:

name - the parameter name to search for

Returns:

the name of the found parameter or null if no matching parameter was found

search

public GraphName search(String name)

Specified by:

search in interface ParameterTree

See Also:

• ParameterTree.search(GraphName)

getNames

public List<GraphName> getNames()

Specified by:

getNames in interface ParameterTree

Returns:

all known parameter names

addParameterListener

public void addParameterListener(GraphName name,
 ParameterListener listener)

Description copied from interface: ParameterTree

Subscribes to changes to the specified parameter.

Specified by:

addParameterListener in interface ParameterTree

Parameters:

name - the parameter name to subscribe to

listener - a ParameterListener that will be called when the subscribed parameter changes

addParameterListener

public void addParameterListener(String name,
 ParameterListener listener)

Specified by:

addParameterListener in interface ParameterTree

See Also:

• ParameterTree.addParameterListener(GraphName, ParameterListener)

set

public void set(GraphName name,
 boolean value)

Specified by:

set in interface ParameterTree

Parameters:

name - the parameter name

value - the value that the parameter will be set to

set

public void set(String name,
 boolean value)

Specified by:

set in interface ParameterTree

See Also:

• ParameterTree.set(GraphName, boolean)

set

public void set(GraphName name,
 int value)

Specified by:

set in interface ParameterTree

Parameters:

name - the parameter name

value - the value that the parameter will be set to

set

public void set(String name,
 int value)

Specified by:

set in interface ParameterTree

See Also:

• ParameterTree.set(GraphName, int)

set

public void set(GraphName name,
 double value)

Specified by:

set in interface ParameterTree

Parameters:

name - the parameter name

value - the value that the parameter will be set to

set

public void set(String name,
 double value)

Specified by:

set in interface ParameterTree

See Also:

• ParameterTree.set(GraphName, double)

set

public void set(GraphName name,
 String value)

Specified by:

set in interface ParameterTree

Parameters:

name - the parameter name

value - the value that the parameter will be set to

set

public void set(String name,
 String value)

Specified by:

set in interface ParameterTree

See Also:

• ParameterTree.set(GraphName, String)

set

public void set(GraphName name,
 List<?> value)

Specified by:

set in interface ParameterTree

Parameters:

name - the parameter name

value - the value that the parameter will be set to

set

public void set(String name,
 List<?> value)

Specified by:

set in interface ParameterTree

See Also:

• ParameterTree.set(GraphName, List)

set

public void set(GraphName name,
 Map<?,?> value)

Specified by:

set in interface ParameterTree

Parameters:

name - the parameter name

value - the value that the parameter will be set to

set

public void set(String name,
 Map<?,?> value)

Specified by:

set in interface ParameterTree

See Also:

• ParameterTree.set(GraphName, Map)

getBoolean

public boolean getBoolean(GraphName name)

Specified by:

getBoolean in interface ParameterTree

Parameters:

name - the parameter name

Returns:

the parameter value

getBoolean

public boolean getBoolean(String name)

Specified by:

getBoolean in interface ParameterTree

See Also:

• ParameterTree.getBoolean(GraphName)

getBoolean

public boolean getBoolean(GraphName name,
 boolean defaultValue)

Specified by:

getBoolean in interface ParameterTree

Parameters:

name - the parameter name

defaultValue - the default value

Returns:

the parameter value or the default value if the parameter does not exist

getBoolean

public boolean getBoolean(String name,
 boolean defaultValue)

Specified by:

getBoolean in interface ParameterTree

See Also:

• ParameterTree.getBoolean(GraphName, boolean)

getInteger

public int getInteger(GraphName name)

Specified by:

getInteger in interface ParameterTree

Parameters:

name - the parameter name

Returns:

the parameter value

getInteger

public int getInteger(String name)

Specified by:

getInteger in interface ParameterTree

See Also:

• ParameterTree.getInteger(GraphName)

getInteger

public int getInteger(GraphName name,
 int defaultValue)

Specified by:

getInteger in interface ParameterTree

Parameters:

name - the parameter name

defaultValue - the default value

Returns:

the parameter value or the default value if the parameter does not exist

getInteger

public int getInteger(String name,
 int defaultValue)

Specified by:

getInteger in interface ParameterTree

See Also:

• ParameterTree.getInteger(GraphName, int)

getDouble

public double getDouble(GraphName name)

Specified by:

getDouble in interface ParameterTree

Parameters:

name - the parameter name

Returns:

the parameter value

getDouble

public double getDouble(String name)

Specified by:

getDouble in interface ParameterTree

See Also:

• ParameterTree.getDouble(GraphName)

getDouble

public double getDouble(GraphName name,
 double defaultValue)

Specified by:

getDouble in interface ParameterTree

Parameters:

name - the parameter name

defaultValue - the default value

Returns:

the parameter value or the default value if the parameter does not exist

getDouble

public double getDouble(String name,
 double defaultValue)

Specified by:

getDouble in interface ParameterTree

See Also:

• ParameterTree.getDouble(GraphName, double)

getString

public String getString(GraphName name)

Specified by:

getString in interface ParameterTree

Parameters:

name - the parameter name

Returns:

the parameter value:w

getString

public String getString(String name)

Specified by:

getString in interface ParameterTree

See Also:

• ParameterTree.getString(GraphName)

getString

public String getString(GraphName name,
 String defaultValue)

Specified by:

getString in interface ParameterTree

Parameters:

name - the parameter name

defaultValue - the default value

Returns:

the parameter value or the default value if the parameter does not exist

getString

public String getString(String name,
 String defaultValue)

Specified by:

getString in interface ParameterTree

See Also:

• ParameterTree.getString(GraphName, String)

getList

public List<?> getList(GraphName name)

Specified by:

getList in interface ParameterTree

Parameters:

name - the parameter name

Returns:

the parameter value

getList

public List<?> getList(String name)

Specified by:

getList in interface ParameterTree

See Also:

• ParameterTree.getList(GraphName)

getList

public List<?> getList(GraphName name,
 List<?> defaultValue)

Specified by:

getList in interface ParameterTree

Parameters:

name - the parameter name

defaultValue - the default value

Returns:

the parameter value or the default value if the parameter does not exist

getList

public List<?> getList(String name,
 List<?> defaultValue)

Specified by:

getList in interface ParameterTree

See Also:

• ParameterTree.getList(GraphName, List)

getMap

public Map<?,?> getMap(GraphName name)

Specified by:

getMap in interface ParameterTree

Parameters:

name - the parameter name

Returns:

the parameter value

getMap

public Map<?,?> getMap(String name)

Specified by:

getMap in interface ParameterTree

See Also:

• ParameterTree.getMap(GraphName)

getMap

public Map<?,?> getMap(GraphName name,
 Map<?,?> defaultValue)

Specified by:

getMap in interface ParameterTree

Parameters:

name - the parameter name

defaultValue - the default value

Returns:

the parameter value or the default value if the parameter does not exist

getMap

public Map<?,?> getMap(String name,
 Map<?,?> defaultValue)

Specified by:

getMap in interface ParameterTree

See Also:

• ParameterTree.getMap(GraphName, Map)