py4j

Class JVMView

java.lang.Object

py4j.JVMView

public class JVMView
extends Object

A JVM view keeps track of imports and import searches. A Python client can have multiple JVM views (e.g., one for each module) so that imports in one view do not conflict with imports from other views.

JVM views are not hierarchical: they do not inherit from each other so an import in the default view does not affect the other views.

Author:

Barthelemy Dagenais

Field Summary

Fields

Modifier and Type	Field and Description
static String	JAVA_LANG_STAR_IMPORT

Constructor Summary

Constructors

Constructor and Description
JVMView(String name, String id)

Method Summary

Modifier and Type	Method and Description
void	addSingleImport(String singleImport)
void	addStarImport(String starImport)
void	clearImports()
String	getId()
String[]	getImportedNames() Return the current list of imports known to this view.
Set<String>	getLastImportSearches()
String	getName()
int	getSequenceId() Sequence ID for getImportedNames().
Map<String,String>	getSingleImportsMap()
Set<String>	getStarImports()
boolean	removeSingleImport(String importString)
boolean	removeStarImport(String starImport)
void	setId(String id)
void	setName(String name)

Methods inherited from class java.lang.Object

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

Field Detail

JAVA_LANG_STAR_IMPORT

public static final String JAVA_LANG_STAR_IMPORT

See Also:

Constant Field Values

Constructor Detail

JVMView

public JVMView(String name,
               String id)

Method Detail

addSingleImport

public void addSingleImport(String singleImport)

Parameters:

singleImport - Single import statement of the form package1.package2.SimpleName

addStarImport

public void addStarImport(String starImport)

Parameters:

starImport - Star Import of the form "package1.package2.*"

clearImports

public void clearImports()

getId

public String getId()

getLastImportSearches

public Set<String> getLastImportSearches()

getName

public String getName()

getSingleImportsMap

public Map<String,String> getSingleImportsMap()

getStarImports

public Set<String> getStarImports()

removeSingleImport

public boolean removeSingleImport(String importString)

removeStarImport

public boolean removeStarImport(String starImport)

setId

public void setId(String id)

setName

public void setName(String name)

getImportedNames

public String[] getImportedNames()

Return the current list of imports known to this view.

Returns:

list of class simple names.

getSequenceId

public int getSequenceId()

Sequence ID for getImportedNames(). The sequence ID can be compared to a previous call to determine if getImportedNames() will return a different value. The sequence ID is changed after the contents of getImportedNames() changes.

Returns:

sequence ID