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feat(jdk8): move files to new folder to avoid resources compiled.

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linkerlau
2025-09-07 15:25:52 +08:00
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jdkSrc/jdk8/javax/naming/directory/Attribute.java Normal file
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/*
* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.naming.directory;
import java.util.Vector;
import java.util.Enumeration;
import java.util.NoSuchElementException;
import javax.naming.NamingException;
import javax.naming.NamingEnumeration;
import javax.naming.OperationNotSupportedException;
/**
* This interface represents an attribute associated with a named object.
*<p>
* In a directory, named objects can have associated with them
* attributes. The <tt>Attribute</tt> interface represents an attribute associated
* with a named object. An attribute contains 0 or more, possibly null, values.
* The attribute values can be ordered or unordered (see <tt>isOrdered()</tt>).
* If the values are unordered, no duplicates are allowed.
* If the values are ordered, duplicates are allowed.
*<p>
* The content and representation of an attribute and its values is defined by
* the attribute's <em>schema</em>. The schema contains information
* about the attribute's syntax and other properties about the attribute.
* See <tt>getAttributeDefinition()</tt> and
* <tt>getAttributeSyntaxDefinition()</tt>
* for details regarding how to get schema information about an attribute
* if the underlying directory service supports schemas.
*<p>
* Equality of two attributes is determined by the implementation class.
* A simple implementation can use <tt>Object.equals()</tt> to determine equality
* of attribute values, while a more sophisticated implementation might
* make use of schema information to determine equality.
* Similarly, one implementation might provide a static storage
* structure which simply returns the values passed to its
* constructor, while another implementation might define <tt>get()</tt> and
* <tt>getAll()</tt>.
* to get the values dynamically from the directory.
*<p>
* Note that updates to <tt>Attribute</tt> (such as adding or removing a
* value) do not affect the corresponding representation of the attribute
* in the directory. Updates to the directory can only be effected
* using operations in the <tt>DirContext</tt> interface.
*
* @author Rosanna Lee
* @author Scott Seligman
*
* @see BasicAttribute
* @since 1.3
*/
public interface Attribute extends Cloneable, java.io.Serializable {
/**
* Retrieves an enumeration of the attribute's values.
* The behaviour of this enumeration is unspecified
* if the attribute's values are added, changed,
* or removed while the enumeration is in progress.
* If the attribute values are ordered, the enumeration's items
* will be ordered.
*
* @return A non-null enumeration of the attribute's values.
* Each element of the enumeration is a possibly null Object. The object's
* class is the class of the attribute value. The element is null
* if the attribute's value is null.
* If the attribute has zero values, an empty enumeration
* is returned.
* @exception NamingException
* If a naming exception was encountered while retrieving
* the values.
* @see #isOrdered
*/
NamingEnumeration<?> getAll() throws NamingException;
/**
* Retrieves one of this attribute's values.
* If the attribute has more than one value and is unordered, any one of
* the values is returned.
* If the attribute has more than one value and is ordered, the
* first value is returned.
*
* @return A possibly null object representing one of
* the attribute's value. It is null if the attribute's value
* is null.
* @exception NamingException
* If a naming exception was encountered while retrieving
* the value.
* @exception java.util.NoSuchElementException
* If this attribute has no values.
*/
Object get() throws NamingException;
/**
* Retrieves the number of values in this attribute.
*
* @return The nonnegative number of values in this attribute.
*/
int size();
/**
* Retrieves the id of this attribute.
*
* @return The id of this attribute. It cannot be null.
*/
String getID();
/**
* Determines whether a value is in the attribute.
* Equality is determined by the implementation, which may use
* <tt>Object.equals()</tt> or schema information to determine equality.
*
* @param attrVal The possibly null value to check. If null, check
* whether the attribute has an attribute value whose value is null.
* @return true if attrVal is one of this attribute's values; false otherwise.
* @see java.lang.Object#equals
* @see BasicAttribute#equals
*/
boolean contains(Object attrVal);
/**
* Adds a new value to the attribute.
* If the attribute values are unordered and
* <tt>attrVal</tt> is already in the attribute, this method does nothing.
* If the attribute values are ordered, <tt>attrVal</tt> is added to the end of
* the list of attribute values.
*<p>
* Equality is determined by the implementation, which may use
* <tt>Object.equals()</tt> or schema information to determine equality.
*
* @param attrVal The new possibly null value to add. If null, null
* is added as an attribute value.
* @return true if a value was added; false otherwise.
*/
boolean add(Object attrVal);
/**
* Removes a specified value from the attribute.
* If <tt>attrval</tt> is not in the attribute, this method does nothing.
* If the attribute values are ordered, the first occurrence of
* <tt>attrVal</tt> is removed and attribute values at indices greater
* than the removed
* value are shifted up towards the head of the list (and their indices
* decremented by one).
*<p>
* Equality is determined by the implementation, which may use
* <tt>Object.equals()</tt> or schema information to determine equality.
*
* @param attrval The possibly null value to remove from this attribute.
* If null, remove the attribute value that is null.
* @return true if the value was removed; false otherwise.
*/
boolean remove(Object attrval);
/**
* Removes all values from this attribute.
*/
void clear();
/**
* Retrieves the syntax definition associated with the attribute.
* An attribute's syntax definition specifies the format
* of the attribute's value(s). Note that this is different from
* the attribute value's representation as a Java object. Syntax
* definition refers to the directory's notion of <em>syntax</em>.
*<p>
* For example, even though a value might be
* a Java String object, its directory syntax might be "Printable String"
* or "Telephone Number". Or a value might be a byte array, and its
* directory syntax is "JPEG" or "Certificate".
* For example, if this attribute's syntax is "JPEG",
* this method would return the syntax definition for "JPEG".
* <p>
* The information that you can retrieve from a syntax definition
* is directory-dependent.
*<p>
* If an implementation does not support schemas, it should throw
* OperationNotSupportedException. If an implementation does support
* schemas, it should define this method to return the appropriate
* information.
* @return The attribute's syntax definition. Null if the implementation
* supports schemas but this particular attribute does not have
* any schema information.
* @exception OperationNotSupportedException If getting the schema
* is not supported.
* @exception NamingException If a naming exception occurs while getting
* the schema.
*/
DirContext getAttributeSyntaxDefinition() throws NamingException;
/**
* Retrieves the attribute's schema definition.
* An attribute's schema definition contains information
* such as whether the attribute is multivalued or single-valued,
* the matching rules to use when comparing the attribute's values.
*
* The information that you can retrieve from an attribute definition
* is directory-dependent.
*
*<p>
* If an implementation does not support schemas, it should throw
* OperationNotSupportedException. If an implementation does support
* schemas, it should define this method to return the appropriate
* information.
* @return This attribute's schema definition. Null if the implementation
* supports schemas but this particular attribute does not have
* any schema information.
* @exception OperationNotSupportedException If getting the schema
* is not supported.
* @exception NamingException If a naming exception occurs while getting
* the schema.
*/
DirContext getAttributeDefinition() throws NamingException;
/**
* Makes a copy of the attribute.
* The copy contains the same attribute values as the original attribute:
* the attribute values are not themselves cloned.
* Changes to the copy will not affect the original and vice versa.
*
* @return A non-null copy of the attribute.
*/
Object clone();
//----------- Methods to support ordered multivalued attributes
/**
* Determines whether this attribute's values are ordered.
* If an attribute's values are ordered, duplicate values are allowed.
* If an attribute's values are unordered, they are presented
* in any order and there are no duplicate values.
* @return true if this attribute's values are ordered; false otherwise.
* @see #get(int)
* @see #remove(int)
* @see #add(int, java.lang.Object)
* @see #set(int, java.lang.Object)
*/
boolean isOrdered();
/**
* Retrieves the attribute value from the ordered list of attribute values.
* This method returns the value at the <tt>ix</tt> index of the list of
* attribute values.
* If the attribute values are unordered,
* this method returns the value that happens to be at that index.
* @param ix The index of the value in the ordered list of attribute values.
* {@code 0 <= ix < size()}.
* @return The possibly null attribute value at index <tt>ix</tt>;
* null if the attribute value is null.
* @exception NamingException If a naming exception was encountered while
* retrieving the value.
* @exception IndexOutOfBoundsException If <tt>ix</tt> is outside the specified range.
*/
Object get(int ix) throws NamingException;
/**
* Removes an attribute value from the ordered list of attribute values.
* This method removes the value at the <tt>ix</tt> index of the list of
* attribute values.
* If the attribute values are unordered,
* this method removes the value that happens to be at that index.
* Values located at indices greater than <tt>ix</tt> are shifted up towards
* the front of the list (and their indices decremented by one).
*
* @param ix The index of the value to remove.
* {@code 0 <= ix < size()}.
* @return The possibly null attribute value at index <tt>ix</tt> that was removed;
* null if the attribute value is null.
* @exception IndexOutOfBoundsException If <tt>ix</tt> is outside the specified range.
*/
Object remove(int ix);
/**
* Adds an attribute value to the ordered list of attribute values.
* This method adds <tt>attrVal</tt> to the list of attribute values at
* index <tt>ix</tt>.
* Values located at indices at or greater than <tt>ix</tt> are
* shifted down towards the end of the list (and their indices incremented
* by one).
* If the attribute values are unordered and already have <tt>attrVal</tt>,
* <tt>IllegalStateException</tt> is thrown.
*
* @param ix The index in the ordered list of attribute values to add the new value.
* {@code 0 <= ix <= size()}.
* @param attrVal The possibly null attribute value to add; if null, null is
* the value added.
* @exception IndexOutOfBoundsException If <tt>ix</tt> is outside the specified range.
* @exception IllegalStateException If the attribute values are unordered and
* <tt>attrVal</tt> is one of those values.
*/
void add(int ix, Object attrVal);
/**
* Sets an attribute value in the ordered list of attribute values.
* This method sets the value at the <tt>ix</tt> index of the list of
* attribute values to be <tt>attrVal</tt>. The old value is removed.
* If the attribute values are unordered,
* this method sets the value that happens to be at that index
* to <tt>attrVal</tt>, unless <tt>attrVal</tt> is already one of the values.
* In that case, <tt>IllegalStateException</tt> is thrown.
*
* @param ix The index of the value in the ordered list of attribute values.
* {@code 0 <= ix < size()}.
* @param attrVal The possibly null attribute value to use.
* If null, 'null' replaces the old value.
* @return The possibly null attribute value at index ix that was replaced.
* Null if the attribute value was null.
* @exception IndexOutOfBoundsException If <tt>ix</tt> is outside the specified range.
* @exception IllegalStateException If <tt>attrVal</tt> already exists and the
* attribute values are unordered.
*/
Object set(int ix, Object attrVal);
/**
* Use serialVersionUID from JNDI 1.1.1 for interoperability.
*/
static final long serialVersionUID = 8707690322213556804L;
}