java/12 : java.naming/javax/naming/directory/SearchControls.java

SearchControls
https://openjdk.java.net/
GPLv2 + Classpath Exception
/*
 * Copyright (c) 1999, 2000, 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;

This class encapsulates
factors that determine scope of search and what gets returned
as a result of the search.

A SearchControls instance is not synchronized against concurrent
multithreaded access. Multiple threads trying to access and modify
a single SearchControls instance should lock the object.
Author: Rosanna Lee, Scott Seligman
Since: 1.3/**
  * This class encapsulates
  * factors that determine scope of search and what gets returned
  * as a result of the search.
  *<p>
  * A SearchControls instance is not synchronized against concurrent
  * multithreaded access. Multiple threads trying to access and modify
  * a single SearchControls instance should lock the object.
  *
  * @author Rosanna Lee
  * @author Scott Seligman
  * @since 1.3
  */

public class SearchControls implements java.io.Serializable {
    Search the named object.

The NamingEnumeration that results from search()
using OBJECT_SCOPE will contain one or zero element.
The enumeration contains one element if the named object satisfies
the search filter specified in search().
The element will have as its name the empty string because the names
of elements in the NamingEnumeration are relative to the
target context--in this case, the target context is the named object.
It contains zero element if the named object does not satisfy
the search filter specified in search().
 The value of this constant is 0. /**
     * Search the named object.
     *<p>
     * The NamingEnumeration that results from search()
     * using OBJECT_SCOPE will contain one or zero element.
     * The enumeration contains one element if the named object satisfies
     * the search filter specified in search().
     * The element will have as its name the empty string because the names
     * of elements in the NamingEnumeration are relative to the
     * target context--in this case, the target context is the named object.
     * It contains zero element if the named object does not satisfy
     * the search filter specified in search().
     * <p>
     * The value of this constant is {@code 0}.
     */
    public final static int OBJECT_SCOPE = 0;

    Search one level of the named context.

The NamingEnumeration that results from search()
using ONELEVEL_SCOPE contains elements with
objects in the named context that satisfy
the search filter specified in search().
The names of elements in the NamingEnumeration are atomic names
relative to the named context.
 The value of this constant is 1. /**
     * Search one level of the named context.
     *<p>
     * The NamingEnumeration that results from search()
     * using ONELEVEL_SCOPE contains elements with
     * objects in the named context that satisfy
     * the search filter specified in search().
     * The names of elements in the NamingEnumeration are atomic names
     * relative to the named context.
     * <p>
     * The value of this constant is {@code 1}.
     */
    public final static int ONELEVEL_SCOPE = 1;
    Search the entire subtree rooted at the named object.

If the named object is not a DirContext, search only the object.
If the named object is a DirContext, search the subtree
rooted at the named object, including the named object itself.

The search will not cross naming system boundaries.

The NamingEnumeration that results from search()
using SUBTREE_SCOPE contains elements of objects
from the subtree (including the named context)
that satisfy the search filter specified in search().
The names of elements in the NamingEnumeration are either
relative to the named context or is a URL string.
If the named context satisfies the search filter, it is
included in the enumeration with the empty string as
its name.
 The value of this constant is 2. /**
     * Search the entire subtree rooted at the named object.
     *<p>
     * If the named object is not a DirContext, search only the object.
     * If the named object is a DirContext, search the subtree
     * rooted at the named object, including the named object itself.
     *<p>
     * The search will not cross naming system boundaries.
     *<p>
     * The NamingEnumeration that results from search()
     * using SUBTREE_SCOPE contains elements of objects
     * from the subtree (including the named context)
     * that satisfy the search filter specified in search().
     * The names of elements in the NamingEnumeration are either
     * relative to the named context or is a URL string.
     * If the named context satisfies the search filter, it is
     * included in the enumeration with the empty string as
     * its name.
     * <p>
     * The value of this constant is {@code 2}.
     */
    public final static int SUBTREE_SCOPE = 2;

    Contains the scope with which to apply the search. One of ONELEVEL_SCOPE, OBJECT_SCOPE, or SUBTREE_SCOPE. 
@serial /**
     * Contains the scope with which to apply the search. One of
     * {@code ONELEVEL_SCOPE}, {@code OBJECT_SCOPE}, or
     * {@code SUBTREE_SCOPE}.
     * @serial
     */
    private int searchScope;

    Contains the milliseconds to wait before returning
from search.
@serial /**
     * Contains the milliseconds to wait before returning
     * from search.
     * @serial
     */
    private int timeLimit;

    Indicates whether JNDI links are dereferenced during
search.
@serial /**
     * Indicates whether JNDI links are dereferenced during
     * search.
     * @serial
     */
    private boolean derefLink;

     Indicates whether object is returned in SearchResult. 
@serial /**
     *  Indicates whether object is returned in {@code SearchResult}.
     * @serial
     */
    private boolean returnObj;

    Contains the maximum number of SearchResults to return.
@serial /**
     * Contains the maximum number of SearchResults to return.
     * @serial
     */
    private long countLimit;

     Contains the list of attributes to be returned in SearchResult for each matching entry of search. null indicates that all attributes are to be returned. 
@serial /**
     *  Contains the list of attributes to be returned in
     * {@code SearchResult} for each matching entry of search. {@code null}
     * indicates that all attributes are to be returned.
     * @serial
     */
    private String[] attributesToReturn;

    Constructs a search constraints using defaults.

The defaults are:

search one level
no maximum return limit for search results
no time limit for search
return all attributes associated with objects that satisfy
  the search filter.
do not return named object  (return only name and class)
do not dereference links during search

/**
     * Constructs a search constraints using defaults.
     *<p>
     * The defaults are:
     * <ul>
     * <li>search one level
     * <li>no maximum return limit for search results
     * <li>no time limit for search
     * <li>return all attributes associated with objects that satisfy
     *   the search filter.
     * <li>do not return named object  (return only name and class)
     * <li>do not dereference links during search
     *</ul>
     */
    public SearchControls() {
        searchScope = ONELEVEL_SCOPE;
        timeLimit = 0; // no limit
        countLimit = 0; // no limit
        derefLink = false;
        returnObj = false;
        attributesToReturn = null; // return all
    }

    Constructs a search constraints using arguments.
Params: scope –     The search scope.  One of:
                 OBJECT_SCOPE, ONELEVEL_SCOPE, SUBTREE_SCOPE.
timelim –   The number of milliseconds to wait before returning.
                 If 0, wait indefinitely.
deref –     If true, dereference links during search.
countlim –  The maximum number of entries to return.  If 0, return
                 all entries that satisfy filter.
retobj –    If true, return the object bound to the name of the
                 entry; if false, do not return object.
attrs –     The identifiers of the attributes to return along with
                 the entry.  If null, return all attributes. If empty
                 return no attributes./**
     * Constructs a search constraints using arguments.
     * @param scope     The search scope.  One of:
     *                  OBJECT_SCOPE, ONELEVEL_SCOPE, SUBTREE_SCOPE.
     * @param timelim   The number of milliseconds to wait before returning.
     *                  If 0, wait indefinitely.
     * @param deref     If true, dereference links during search.
     * @param countlim  The maximum number of entries to return.  If 0, return
     *                  all entries that satisfy filter.
     * @param retobj    If true, return the object bound to the name of the
     *                  entry; if false, do not return object.
     * @param attrs     The identifiers of the attributes to return along with
     *                  the entry.  If null, return all attributes. If empty
     *                  return no attributes.
     */
    public SearchControls(int scope,
                             long countlim,
                             int timelim,
                             String[] attrs,
                             boolean retobj,
                             boolean deref) {
        searchScope = scope;
        timeLimit = timelim; // no limit
        derefLink = deref;
        returnObj = retobj;
        countLimit = countlim; // no limit
        attributesToReturn = attrs; // return all
    }

    Retrieves the search scope of these SearchControls.

One of OBJECT_SCOPE, ONELEVEL_SCOPE, SUBTREE_SCOPE.
See Also: setSearchScope
Returns: The search scope of this SearchControls./**
     * Retrieves the search scope of these SearchControls.
     *<p>
     * One of OBJECT_SCOPE, ONELEVEL_SCOPE, SUBTREE_SCOPE.
     *
     * @return The search scope of this SearchControls.
     * @see #setSearchScope
     */
    public int getSearchScope() {
        return searchScope;
    }

    Retrieves the time limit of these SearchControls in milliseconds.

If the value is 0, this means to wait indefinitely.
See Also: setTimeLimit
Returns: The time limit of these SearchControls in milliseconds./**
     * Retrieves the time limit of these SearchControls in milliseconds.
     *<p>
     * If the value is 0, this means to wait indefinitely.
     * @return The time limit of these SearchControls in milliseconds.
     * @see #setTimeLimit
     */
    public int getTimeLimit() {
        return timeLimit;
    }

    Determines whether links will be dereferenced during the search.
See Also: setDerefLinkFlag
Returns: true if links will be dereferenced; false otherwise./**
     * Determines whether links will be dereferenced during the search.
     *
     * @return true if links will be dereferenced; false otherwise.
     * @see #setDerefLinkFlag
     */
    public boolean getDerefLinkFlag() {
        return derefLink;
    }

    Determines whether objects will be returned as part of the result.
See Also: setReturningObjFlag
Returns: true if objects will be returned; false otherwise./**
     * Determines whether objects will be returned as part of the result.
     *
     * @return true if objects will be returned; false otherwise.
     * @see #setReturningObjFlag
     */
    public boolean getReturningObjFlag() {
        return returnObj;
    }

    Retrieves the maximum number of entries that will be returned
as a result of the search.

0 indicates that all entries will be returned.
See Also: setCountLimit
Returns: The maximum number of entries that will be returned./**
     * Retrieves the maximum number of entries that will be returned
     * as a result of the search.
     *<p>
     * 0 indicates that all entries will be returned.
     * @return The maximum number of entries that will be returned.
     * @see #setCountLimit
     */
    public long getCountLimit() {
        return countLimit;
    }

    Retrieves the attributes that will be returned as part of the search.

A value of null indicates that all attributes will be returned.
An empty array indicates that no attributes are to be returned.
See Also: setReturningAttributes
Returns: An array of attribute ids identifying the attributes that
will be returned. Can be null./**
     * Retrieves the attributes that will be returned as part of the search.
     *<p>
     * A value of null indicates that all attributes will be returned.
     * An empty array indicates that no attributes are to be returned.
     *
     * @return An array of attribute ids identifying the attributes that
     * will be returned. Can be null.
     * @see #setReturningAttributes
     */
    public String[] getReturningAttributes() {
        return attributesToReturn;
    }

    Sets the search scope to one of:
OBJECT_SCOPE, ONELEVEL_SCOPE, SUBTREE_SCOPE.
Params: scope –     The search scope of this SearchControls.
See Also: getSearchScope/**
     * Sets the search scope to one of:
     * OBJECT_SCOPE, ONELEVEL_SCOPE, SUBTREE_SCOPE.
     * @param scope     The search scope of this SearchControls.
     * @see #getSearchScope
     */
    public void setSearchScope(int scope) {
        searchScope = scope;
    }

    Sets the time limit of these SearchControls in milliseconds.

If the value is 0, this means to wait indefinitely.
Params: ms –        The time limit of these SearchControls in milliseconds.
See Also: getTimeLimit/**
     * Sets the time limit of these SearchControls in milliseconds.
     *<p>
     * If the value is 0, this means to wait indefinitely.
     * @param ms        The time limit of these SearchControls in milliseconds.
     * @see #getTimeLimit
     */
    public void setTimeLimit(int ms) {
        timeLimit = ms;
    }

    Enables/disables link dereferencing during the search.
Params: on –        if true links will be dereferenced; if false, not followed.
See Also: getDerefLinkFlag/**
     * Enables/disables link dereferencing during the search.
     *
     * @param on        if true links will be dereferenced; if false, not followed.
     * @see #getDerefLinkFlag
     */
    public void setDerefLinkFlag(boolean on) {
        derefLink = on;
    }

    Enables/disables returning objects returned as part of the result.

If disabled, only the name and class of the object is returned.
If enabled, the object will be returned.
Params: on –        if true, objects will be returned; if false,
                 objects will not be returned.
See Also: getReturningObjFlag/**
     * Enables/disables returning objects returned as part of the result.
     *<p>
     * If disabled, only the name and class of the object is returned.
     * If enabled, the object will be returned.
     *
     * @param on        if true, objects will be returned; if false,
     *                  objects will not be returned.
     * @see #getReturningObjFlag
     */
    public void setReturningObjFlag(boolean on) {
        returnObj = on;
    }

    Sets the maximum number of entries to be returned
as a result of the search.

0 indicates no limit:  all entries will be returned.
Params: limit – The maximum number of entries that will be returned.
See Also: getCountLimit/**
     * Sets the maximum number of entries to be returned
     * as a result of the search.
     *<p>
     * 0 indicates no limit:  all entries will be returned.
     *
     * @param limit The maximum number of entries that will be returned.
     * @see #getCountLimit
     */
    public void setCountLimit(long limit) {
        countLimit = limit;
    }

    Specifies the attributes that will be returned as part of the search.

null indicates that all attributes will be returned.
An empty array indicates no attributes are returned.
Params: attrs – An array of attribute ids identifying the attributes that
             will be returned. Can be null.
See Also: getReturningAttributes/**
     * Specifies the attributes that will be returned as part of the search.
     *<p>
     * null indicates that all attributes will be returned.
     * An empty array indicates no attributes are returned.
     *
     * @param attrs An array of attribute ids identifying the attributes that
     *              will be returned. Can be null.
     * @see #getReturningAttributes
     */
    public void setReturningAttributes(String[] attrs) {
        attributesToReturn = attrs;
    }

    Use serialVersionUID from JNDI 1.1.1 for interoperability.
/**
     * Use serialVersionUID from JNDI 1.1.1 for interoperability.
     */
    private static final long serialVersionUID = -2480540967773454797L;
}
See Also:	setSearchScope
Returns:	The search scope of this SearchControls.
See Also:	setTimeLimit
Returns:	The time limit of these SearchControls in milliseconds.
See Also:	setDerefLinkFlag
Returns:	true if links will be dereferenced; false otherwise.
See Also:	setReturningObjFlag
Returns:	true if objects will be returned; false otherwise.
See Also:	setCountLimit
Returns:	The maximum number of entries that will be returned.
See Also:	setReturningAttributes
Returns:	An array of attribute ids identifying the attributes that will be returned. Can be null.
Params:	scope – The search scope of this SearchControls.
See Also:	getSearchScope
Params:	ms – The time limit of these SearchControls in milliseconds.
See Also:	getTimeLimit
Params:	on – if true links will be dereferenced; if false, not followed.
See Also:	getDerefLinkFlag
Params:	on – if true, objects will be returned; if false, objects will not be returned.
See Also:	getReturningObjFlag
Params:	limit – The maximum number of entries that will be returned.
See Also:	getCountLimit
Params:	attrs – An array of attribute ids identifying the attributes that will be returned. Can be null.
See Also:	getReturningAttributes
/

java/ 12/ java.naming/javax/naming/directory/SearchControls.java
