Class SerialDatalink

All Implemented Interfaces:
Serializable, Cloneable 
public class SerialDatalink
extends Object
implements Serializable, Cloneable

A serialized mapping in the Java programming language of an SQL DATALINK value. A DATALINK value references a file outside of the underlying data source that the data source manages.

RowSet implementations can use the method RowSet.getURL to retrieve a java.net.URL object, which can be used to manipulate the external data. 

java.net.URL url = rowset.getURL(1);

Thread safety

A SerialDatalink is not safe for use by multiple concurrent threads. If a SerialDatalink is to be used by more than one thread then access to the SerialDatalink should be controlled by appropriate synchronization.
Since:
1.5
See Also:
Serialized Form

Constructors

Constructor Description
SerialDatalink​(URL url)

Constructs a new SerialDatalink object from the given java.net.URL object.

Methods

Modifier and Type Method Description
Object clone()

Returns a clone of this SerialDatalink.
boolean equals​(Object obj)

Compares this SerialDatalink to the specified object.
URL getDatalink()

Returns a new URL that is a copy of this SerialDatalink object.
int hashCode()

Returns a hash code for this SerialDatalink.

Methods declared in class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructors

SerialDatalink

public SerialDatalink(URL url)
               throws SerialException

Constructs a new SerialDatalink object from the given java.net.URL object.

Parameters:
url - the URL to create the SerialDataLink from
Throws:
SerialException - if url parameter is a null

Methods

getDatalink

public URL getDatalink()
                throws SerialException

Returns a new URL that is a copy of this SerialDatalink object.

Returns:
a copy of this SerialDatalink object as a URL object in the Java programming language.
Throws:
SerialException - if the URL object cannot be de-serialized

equals

public boolean equals(Object obj)

Compares this SerialDatalink to the specified object. The result is true if and only if the argument is not null and is a SerialDatalink object whose URL is identical to this object's URL

Overrides:
equals in class Object
Parameters:
obj - The object to compare this SerialDatalink against
Returns:
true if the given object represents a SerialDatalink equivalent to this SerialDatalink, false otherwise
See Also:
Object.hashCode(), HashMap

hashCode

public int hashCode()

Returns a hash code for this SerialDatalink. The hash code for a SerialDatalink object is taken as the hash code of the URL it stores

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)

clone

public Object clone()

Returns a clone of this SerialDatalink.

Overrides:
clone in class Object
Returns:
a clone of this SerialDatalink
See Also:
Cloneable

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/11/docs/api/java.sql.rowset/javax/sql/rowset/serial/SerialDatalink.html