Module jdk.jlink

Package jdk.tools.jlink.plugin

Class Pool.ModuleData

java.lang.Object

jdk.tools.jlink.plugin.Pool.ModuleData

Enclosing class:

Pool

public static class Pool.ModuleData
extends Object

A ModuleData is the elementary unit of data inside an image. It is generally a file. e.g.: a java class file, a resource file, a shared library, ...
A ModuleData is identified by a path of the form:

• For jimage content: /{module name}/{package1}/.../{packageN}/{file name}
• For other files (shared lib, launchers, config, ...):/{module name}/ bin|conf|native/{dir1}>/.../{dirN}/{file name}

Constructor Summary

Constructors

Constructor and Description
ModuleData(String module, String path, Pool.ModuleDataType type, InputStream stream, long length) Create a new ModuleData.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other) Indicates whether some other object is "equal to" this one.
byte[]	getBytes() The ModuleData content as an array of byte.
long	getLength() The ModuleData content length.
String	getModule() The ModuleData module name.
String	getPath() The ModuleData path.
Pool.ModuleDataType	getType() The ModuleData type.
int	hashCode() Returns a hash code value for the object.
InputStream	stream() The ModuleData stream.
String	toString() Returns a string representation of the object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ModuleData

public ModuleData(String module,
                  String path,
                  Pool.ModuleDataType type,
                  InputStream stream,
                  long length)

Create a new ModuleData.

Parameters:

module - The module name.

path - The data path identifier.

type - The data type.

stream - The data content stream.

length - The stream length.

Method Detail

getModule

public final String getModule()

The ModuleData module name.

Returns:

The module name.

getPath

public final String getPath()

The ModuleData path.

Returns:

The module path.

getType

public final Pool.ModuleDataType getType()

The ModuleData type.

Returns:

The data type.

getBytes

public byte[] getBytes()

The ModuleData content as an array of byte.

Returns:

An Array of bytes.

getLength

public long getLength()

The ModuleData content length.

Returns:

The length.

stream

public InputStream stream()

The ModuleData stream.

Returns:

The module data stream.

hashCode

public int hashCode()

Description copied from class: java.lang.Object

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (The hashCode may or may not be implemented as some function of an object's memory address at some point in time.)

Overrides:

hashCode in class Object

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

equals

public boolean equals(Object other)

Description copied from class: java.lang.Object

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Overrides:

equals in class Object

Parameters:

other - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.hashCode(), HashMap

toString

public String toString()

Description copied from class: java.lang.Object

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Overrides:

toString in class Object

Returns:

a string representation of the object.