Class ModuleDescriptor.Exports

All Implemented Interfaces:
Comparable<ModuleDescriptor.Exports>
Enclosing class:
ModuleDescriptor
public static final class ModuleDescriptor.Exports
extends Object
implements Comparable<ModuleDescriptor.Exports>

A package exported by a module, may be qualified or unqualified.

Since:
9
See Also:
ModuleDescriptor.exports()

Nested Classes

Modifier and Type Class Description
static class  ModuleDescriptor.Exports.Modifier

A modifier on an exported package.

Methods

Modifier and Type Method Description
int compareTo​(ModuleDescriptor.Exports that)

Compares this module export to another.
boolean equals​(Object ob)

Tests this module export for equality with the given object.
int hashCode()

Computes a hash code for this module export.
boolean isQualified()

Returns true if this is a qualified export.
Set<ModuleDescriptor.Exports.Modifier> modifiers()

Returns the set of modifiers.
String source()

Returns the package name.
Set<String> targets()

For a qualified export, returns the non-empty and immutable set of the module names to which the package is exported.
String toString()

Returns a string describing the exported package.

Methods declared in class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods

modifiers

public Set<ModuleDescriptor.Exports.Modifier> modifiers()

Returns the set of modifiers.

Returns:
A possibly-empty unmodifiable set of modifiers

isQualified

public boolean isQualified()

Returns true if this is a qualified export.

Returns:
true if this is a qualified export

source

public String source()

Returns the package name.

Returns:
The package name

targets

public Set<String> targets()

For a qualified export, returns the non-empty and immutable set of the module names to which the package is exported. For an unqualified export, returns an empty set.

Returns:
The set of target module names or for an unqualified export, an empty set

compareTo

public int compareTo(ModuleDescriptor.Exports that)

Compares this module export to another.

Two Exports objects are compared by comparing the package names lexicographically. Where the packages names are equal then the sets of modifiers are compared in the same way that module modifiers are compared (see ModuleDescriptor.compareTo). Where the package names are equal and the set of modifiers are equal then the set of target modules are compared. This is done by sorting the names of the target modules in ascending order, and according to their natural ordering, and then comparing the corresponding elements lexicographically. Where the sets differ in size, and the larger set contains all elements of the smaller set, then the larger set is considered to succeed the smaller set.

Specified by:
compareTo in interface Comparable<ModuleDescriptor.Exports>
Parameters:
that - The module export to compare
Returns:
A negative integer, zero, or a positive integer if this module export is less than, equal to, or greater than the given export dependence

hashCode

public int hashCode()

Computes a hash code for this module export.

The hash code is based upon the modifiers, the package name, and for a qualified export, the set of modules names to which the package is exported. It satisfies the general contract of the Object.hashCode method.

Overrides:
hashCode in class Object
Returns:
The hash-code value for this module export
See Also:
Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

equals

public boolean equals(Object ob)

Tests this module export for equality with the given object.

If the given object is not an Exports then this method returns false. Two module exports objects are equal if their set of modifiers is equal, the package names are equal and the set of target module names is equal.

This method satisfies the general contract of the Object.equals method.

Overrides:
equals in class Object
Parameters:
ob - the object to which this object is to be compared
Returns:
true if, and only if, the given object is a module dependence that is equal to this module dependence
See Also:
Object.hashCode(), HashMap

toString

public String toString()

Returns a string describing the exported package.

Overrides:
toString in class Object
Returns:
A string describing the exported package

© 1993, 2020, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/module/ModuleDescriptor.Exports.html