http://www.mongodb.org: The Java operations layer for the MongoDB Java Driver. Third parties can wrap this layer to provide custom higher-level APIs
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/*
 * Copyright 2008-present MongoDB, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.mongodb.client.model;

import com.mongodb.CursorType;
import com.mongodb.lang.Nullable;
import org.bson.conversions.Bson;

import java.util.concurrent.TimeUnit;

import static com.mongodb.assertions.Assertions.isTrueArgument;
import static com.mongodb.assertions.Assertions.notNull;


The options to apply to a find operation (also commonly referred to as a query).

Since:3.0
@mongodb.driver.manualtutorial/query-documents/ Find
@mongodb.driver.manual../meta-driver/latest/legacy/mongodb-wire-protocol/#op-query OP_QUERY
Deprecated:there is no replacement for this class
/**
 * The options to apply to a find operation (also commonly referred to as a query).
 *
 * @since 3.0
 * @mongodb.driver.manual tutorial/query-documents/ Find
 * @mongodb.driver.manual ../meta-driver/latest/legacy/mongodb-wire-protocol/#op-query OP_QUERY
 * @deprecated there is no replacement for this class
 */
@Deprecated
public final class FindOptions {
    private int batchSize;
    private int limit;
    private Bson modifiers;
    private Bson projection;
    private long maxTimeMS;
    private long maxAwaitTimeMS;
    private int skip;
    private Bson sort;
    private CursorType cursorType = CursorType.NonTailable;
    private boolean noCursorTimeout;
    private boolean oplogReplay;
    private boolean partial;
    private Collation collation;
    private String comment;
    private Bson hint;
    private Bson max;
    private Bson min;
    private long maxScan;
    private boolean returnKey;
    private boolean showRecordId;
    private boolean snapshot;

    
Construct a new instance.

/**
     * Construct a new instance.
     */
    public FindOptions() {
    }

    
Construct a new instance by making a shallow copy of the given model.

Params:
  • from – model to copy
Deprecated:this constructor is unused
/**
     * Construct a new instance by making a shallow copy of the given model.
     * @param from model to copy
     * @deprecated this constructor is unused
     */
    @Deprecated
    public FindOptions(final FindOptions from) {
        batchSize = from.batchSize;
        limit = from.limit;
        modifiers = from.modifiers;
        projection = from.projection;
        maxTimeMS = from.maxTimeMS;
        maxAwaitTimeMS = from.maxAwaitTimeMS;
        skip = from.skip;
        sort = from.sort;
        cursorType = from.cursorType;
        noCursorTimeout = from.noCursorTimeout;
        oplogReplay = from.oplogReplay;
        partial = from.partial;
        comment = from.comment;
        hint = from.hint;
        max = from.max;
        min = from.min;
        maxScan = from.maxScan;
        returnKey = from.returnKey;
        showRecordId = from.showRecordId;
        snapshot = from.snapshot;
    }

    
Gets the limit to apply.  The default is null.

Returns:the limit
@mongodb.driver.manualreference/method/cursor.limit/#cursor.limit Limit
/**
     * Gets the limit to apply.  The default is null.
     *
     * @return the limit
     * @mongodb.driver.manual reference/method/cursor.limit/#cursor.limit Limit
     */
    public int getLimit() {
        return limit;
    }

    
Sets the limit to apply.

Params:
  • limit – the limit, which may be null
Returns:this
@mongodb.driver.manualreference/method/cursor.limit/#cursor.limit Limit
/**
     * Sets the limit to apply.
     *
     * @param limit the limit, which may be null
     * @return this
     * @mongodb.driver.manual reference/method/cursor.limit/#cursor.limit Limit
     */
    public FindOptions limit(final int limit) {
        this.limit = limit;
        return this;
    }

    
Gets the number of documents to skip. The default is 0.

Returns:the number of documents to skip
@mongodb.driver.manualreference/method/cursor.skip/#cursor.skip Skip
/**
     * Gets the number of documents to skip. The default is 0.
     *
     * @return the number of documents to skip
     * @mongodb.driver.manual reference/method/cursor.skip/#cursor.skip Skip
     */
    public int getSkip() {
        return skip;
    }

    
Sets the number of documents to skip.

Params:
  • skip – the number of documents to skip
Returns:this
@mongodb.driver.manualreference/method/cursor.skip/#cursor.skip Skip
/**
     * Sets the number of documents to skip.
     *
     * @param skip the number of documents to skip
     * @return this
     * @mongodb.driver.manual reference/method/cursor.skip/#cursor.skip Skip
     */
    public FindOptions skip(final int skip) {
        this.skip = skip;
        return this;
    }

    
Gets the maximum execution time on the server for this operation.  The default is 0, which places no limit on the execution time.

Params:
  • timeUnit – the time unit to return the result in
Returns:the maximum execution time in the given time unit
@mongodb.driver.manualreference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
/**
     * Gets the maximum execution time on the server for this operation.  The default is 0, which places no limit on the execution time.
     *
     * @param timeUnit the time unit to return the result in
     * @return the maximum execution time in the given time unit
     * @mongodb.driver.manual reference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
     */
    public long getMaxTime(final TimeUnit timeUnit) {
        notNull("timeUnit", timeUnit);
        return timeUnit.convert(maxTimeMS, TimeUnit.MILLISECONDS);
    }

    
Sets the maximum execution time on the server for this operation.

Params:
  • maxTime –  the max time
  • timeUnit – the time unit, which may not be null
Returns:this
@mongodb.driver.manualreference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
/**
     * Sets the maximum execution time on the server for this operation.
     *
     * @param maxTime  the max time
     * @param timeUnit the time unit, which may not be null
     * @return this
     * @mongodb.driver.manual reference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
     */
    public FindOptions maxTime(final long maxTime, final TimeUnit timeUnit) {
        notNull("timeUnit", timeUnit);
        isTrueArgument("maxTime > = 0", maxTime >= 0);
        this.maxTimeMS = TimeUnit.MILLISECONDS.convert(maxTime, timeUnit);
        return this;
    }

    
The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor
query. This only applies to a TAILABLE_AWAIT cursor. When the cursor is not a TAILABLE_AWAIT cursor,
this option is ignored.
On servers >= 3.2, this option will be specified on the getMore command as "maxTimeMS". The default
is no value: no "maxTimeMS" is sent to the server with the getMore command.
On servers < 3.2, this option is ignored, and indicates that the driver should respect the server's default value
A zero value will be ignored.

Params:
  • timeUnit – the time unit to return the result in
Returns:the maximum await execution time in the given time unit
Since:3.2
@mongodb.driver.manualreference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
/**
     * The maximum amount of time for the server to wait on new documents to satisfy a tailable cursor
     * query. This only applies to a TAILABLE_AWAIT cursor. When the cursor is not a TAILABLE_AWAIT cursor,
     * this option is ignored.
     *
     * On servers &gt;= 3.2, this option will be specified on the getMore command as "maxTimeMS". The default
     * is no value: no "maxTimeMS" is sent to the server with the getMore command.
     *
     * On servers &lt; 3.2, this option is ignored, and indicates that the driver should respect the server's default value
     *
     * A zero value will be ignored.
     *
     * @param timeUnit the time unit to return the result in
     * @return the maximum await execution time in the given time unit
     * @since 3.2
     * @mongodb.driver.manual reference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
     */
    public long getMaxAwaitTime(final TimeUnit timeUnit) {
        notNull("timeUnit", timeUnit);
        return timeUnit.convert(maxAwaitTimeMS, TimeUnit.MILLISECONDS);
    }

    
Sets the maximum await execution time on the server for this operation.

Params:
  • maxAwaitTime –  the max await time.  A zero value will be ignored, and indicates that the driver should respect the server's
                     default value
  • timeUnit – the time unit, which may not be null
Returns:this
Since:3.2
@mongodb.driver.manualreference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
/**
     * Sets the maximum await execution time on the server for this operation.
     *
     * @param maxAwaitTime  the max await time.  A zero value will be ignored, and indicates that the driver should respect the server's
     *                      default value
     * @param timeUnit the time unit, which may not be null
     * @return this
     * @since 3.2
     * @mongodb.driver.manual reference/method/cursor.maxTimeMS/#cursor.maxTimeMS Max Time
     */
    public FindOptions maxAwaitTime(final long maxAwaitTime, final TimeUnit timeUnit) {
        notNull("timeUnit", timeUnit);
        isTrueArgument("maxAwaitTime > = 0", maxAwaitTime >= 0);
        this.maxAwaitTimeMS = TimeUnit.MILLISECONDS.convert(maxAwaitTime, timeUnit);
        return this;
    }

    
Gets the number of documents to return per batch.  Default to 0, which indicates that the server chooses an appropriate batch
size.

Returns:the batch size
@mongodb.driver.manualreference/method/cursor.batchSize/#cursor.batchSize Batch Size
/**
     * Gets the number of documents to return per batch.  Default to 0, which indicates that the server chooses an appropriate batch
     * size.
     *
     * @return the batch size
     * @mongodb.driver.manual reference/method/cursor.batchSize/#cursor.batchSize Batch Size
     */
    public int getBatchSize() {
        return batchSize;
    }

    
Sets the number of documents to return per batch.

Params:
  • batchSize – the batch size
Returns:this
@mongodb.driver.manualreference/method/cursor.batchSize/#cursor.batchSize Batch Size
/**
     * Sets the number of documents to return per batch.
     *
     * @param batchSize the batch size
     * @return this
     * @mongodb.driver.manual reference/method/cursor.batchSize/#cursor.batchSize Batch Size
     */
    public FindOptions batchSize(final int batchSize) {
        this.batchSize = batchSize;
        return this;
    }

    
Gets the query modifiers to apply to this operation.  The default is not to apply any modifiers.

Returns:the query modifiers, which may be null
@mongodb.driver.manualreference/operator/query-modifier/ Query Modifiers
Deprecated:use the individual modifier methods instead.
/**
     * Gets the query modifiers to apply to this operation.  The default is not to apply any modifiers.
     *
     * @return the query modifiers, which may be null
     * @mongodb.driver.manual reference/operator/query-modifier/ Query Modifiers
     * @deprecated use the individual modifier methods instead.
     */
    @Deprecated
    @Nullable
    public Bson getModifiers() {
        return modifiers;
    }

    
Sets the query modifiers to apply to this operation.

Params:
  • modifiers – the query modifiers to apply, which may be null.
Returns:this
@mongodb.driver.manualreference/operator/query-modifier/ Query Modifiers
Deprecated:use the individual modifier methods instead.
/**
     * Sets the query modifiers to apply to this operation.
     *
     * @param modifiers the query modifiers to apply, which may be null.
     * @return this
     * @mongodb.driver.manual reference/operator/query-modifier/ Query Modifiers
     * @deprecated use the individual modifier methods instead.
     */
    @Deprecated
    public FindOptions modifiers(@Nullable final Bson modifiers) {
        this.modifiers = modifiers;
        return this;
    }

    
Gets a document describing the fields to return for all matching documents.

Returns:the project document, which may be null
@mongodb.driver.manualreference/method/db.collection.find/ Projection
/**
     * Gets a document describing the fields to return for all matching documents.
     *
     * @return the project document, which may be null
     * @mongodb.driver.manual reference/method/db.collection.find/ Projection
     */
    @Nullable
    public Bson getProjection() {
        return projection;
    }

    
Sets a document describing the fields to return for all matching documents.

Params:
  • projection – the project document, which may be null.
Returns:this
@mongodb.driver.manualreference/method/db.collection.find/ Projection
/**
     * Sets a document describing the fields to return for all matching documents.
     *
     * @param projection the project document, which may be null.
     * @return this
     * @mongodb.driver.manual reference/method/db.collection.find/ Projection
     */
    public FindOptions projection(@Nullable final Bson projection) {
        this.projection = projection;
        return this;
    }

    
Gets the sort criteria to apply to the query. The default is null, which means that the documents will be returned in an undefined
order.

Returns:a document describing the sort criteria
@mongodb.driver.manualreference/method/cursor.sort/ Sort
/**
     * Gets the sort criteria to apply to the query. The default is null, which means that the documents will be returned in an undefined
     * order.
     *
     * @return a document describing the sort criteria
     * @mongodb.driver.manual reference/method/cursor.sort/ Sort
     */
    @Nullable
    public Bson getSort() {
        return sort;
    }

    
Sets the sort criteria to apply to the query.

Params:
  • sort – the sort criteria, which may be null.
Returns:this
@mongodb.driver.manualreference/method/cursor.sort/ Sort
/**
     * Sets the sort criteria to apply to the query.
     *
     * @param sort the sort criteria, which may be null.
     * @return this
     * @mongodb.driver.manual reference/method/cursor.sort/ Sort
     */
    public FindOptions sort(@Nullable final Bson sort) {
        this.sort = sort;
        return this;
    }

    
The server normally times out idle cursors after an inactivity period (10 minutes)
to prevent excess memory use.  If true, that timeout is disabled.

Returns:true if cursor timeout is disabled
/**
     * The server normally times out idle cursors after an inactivity period (10 minutes)
     * to prevent excess memory use.  If true, that timeout is disabled.
     *
     * @return true if cursor timeout is disabled
     */
    public boolean isNoCursorTimeout() {
        return noCursorTimeout;
    }

    
The server normally times out idle cursors after an inactivity period (10 minutes)
to prevent excess memory use. Set this option to prevent that.

Params:
  • noCursorTimeout – true if cursor timeout is disabled
Returns:this
/**
     * The server normally times out idle cursors after an inactivity period (10 minutes)
     * to prevent excess memory use. Set this option to prevent that.
     *
     * @param noCursorTimeout true if cursor timeout is disabled
     * @return this
     */
    public FindOptions noCursorTimeout(final boolean noCursorTimeout) {
        this.noCursorTimeout = noCursorTimeout;
        return this;
    }

    
Users should not set this under normal circumstances.

Returns:if oplog replay is enabled
/**
     * Users should not set this under normal circumstances.
     *
     * @return if oplog replay is enabled
     */
    public boolean isOplogReplay() {
        return oplogReplay;
    }

    
Users should not set this under normal circumstances.

Params:
  • oplogReplay – if oplog replay is enabled
Returns:this
/**
     * Users should not set this under normal circumstances.
     *
     * @param oplogReplay if oplog replay is enabled
     * @return this
     */
    public FindOptions oplogReplay(final boolean oplogReplay) {
        this.oplogReplay = oplogReplay;
        return this;
    }

    
Get partial results from a sharded cluster if one or more shards are unreachable (instead of throwing an error).

Returns:if partial results for sharded clusters is enabled
/**
     * Get partial results from a sharded cluster if one or more shards are unreachable (instead of throwing an error).
     *
     * @return if partial results for sharded clusters is enabled
     */
    public boolean isPartial() {
        return partial;
    }

    
Get partial results from a sharded cluster if one or more shards are unreachable (instead of throwing an error).

Params:
  • partial – if partial results for sharded clusters is enabled
Returns:this
/**
     * Get partial results from a sharded cluster if one or more shards are unreachable (instead of throwing an error).
     *
     * @param partial if partial results for sharded clusters is enabled
     * @return this
     */
    public FindOptions partial(final boolean partial) {
        this.partial = partial;
        return this;
    }

    
Get the cursor type.

Returns:the cursor type
/**
     * Get the cursor type.
     *
     * @return the cursor type
     */
    public CursorType getCursorType() {
        return cursorType;
    }

    
Sets the cursor type.

Params:
  • cursorType – the cursor type
Returns:this
/**
     * Sets the cursor type.
     *
     * @param cursorType the cursor type
     * @return this
     */
    public FindOptions cursorType(final CursorType cursorType) {
        this.cursorType = notNull("cursorType", cursorType);
        return this;
    }

    
Returns the collation options

Returns:the collation options
Since:3.4
@mongodb.server.release3.4
/**
     * Returns the collation options
     *
     * @return the collation options
     * @since 3.4
     * @mongodb.server.release 3.4
     */
    @Nullable
    public Collation getCollation() {
        return collation;
    }

    
Sets the collation options

A null value represents the server default.


Params:
  • collation – the collation options to use
Returns:this
Since:3.4
@mongodb.server.release3.4
/**
     * Sets the collation options
     *
     * <p>A null value represents the server default.</p>
     * @param collation the collation options to use
     * @return this
     * @since 3.4
     * @mongodb.server.release 3.4
     */
    public FindOptions collation(@Nullable final Collation collation) {
        this.collation = collation;
        return this;
    }

    
Returns the comment to send with the query. The default is not to include a comment with the query.

Returns:the comment
Since:3.5
/**
     * Returns the comment to send with the query. The default is not to include a comment with the query.
     *
     * @return the comment
     * @since 3.5
     */
    @Nullable
    public String getComment() {
        return comment;
    }

    
Sets the comment to the query. A null value means no comment is set.

Params:
  • comment – the comment
Returns:this
Since:3.5
/**
     * Sets the comment to the query. A null value means no comment is set.
     *
     * @param comment the comment
     * @return this
     * @since 3.5
     */
    public FindOptions comment(@Nullable final String comment) {
        this.comment = comment;
        return this;
    }

    
Returns the hint for which index to use. The default is not to set a hint.

Returns:the hint
Since:3.5
/**
     * Returns the hint for which index to use. The default is not to set a hint.
     *
     * @return the hint
     * @since 3.5
     */
    @Nullable
    public Bson getHint() {
        return hint;
    }

    
Sets the hint for which index to use. A null value means no hint is set.

Params:
  • hint – the hint
Returns:this
Since:3.5
/**
     * Sets the hint for which index to use. A null value means no hint is set.
     *
     * @param hint the hint
     * @return this
     * @since 3.5
     */
    public FindOptions hint(@Nullable final Bson hint) {
        this.hint = hint;
        return this;
    }

    
Returns the exclusive upper bound for a specific index. By default there is no max bound.

Returns:the max
Since:3.5
/**
     * Returns the exclusive upper bound for a specific index. By default there is no max bound.
     *
     * @return the max
     * @since 3.5
     */
    @Nullable
    public Bson getMax() {
        return max;
    }

    
Sets the exclusive upper bound for a specific index. A null value means no max is set.

Params:
  • max – the max
Returns:this
Since:3.5
/**
     * Sets the exclusive upper bound for a specific index. A null value means no max is set.
     *
     * @param max the max
     * @return this
     * @since 3.5
     */
    public FindOptions max(@Nullable final Bson max) {
        this.max = max;
        return this;
    }

    
Returns the minimum inclusive lower bound for a specific index. By default there is no min bound.

Returns:the min
Since:3.5
/**
     * Returns the minimum inclusive lower bound for a specific index. By default there is no min bound.
     *
     * @return the min
     * @since 3.5
     */
    @Nullable
    public Bson getMin() {
        return min;
    }

    
Sets the minimum inclusive lower bound for a specific index. A null value means no max is set.

Params:
  • min – the min
Returns:this
Since:3.5
/**
     * Sets the minimum inclusive lower bound for a specific index. A null value means no max is set.
     *
     * @param min the min
     * @return this
     * @since 3.5
     */
    public FindOptions min(@Nullable final Bson min) {
        this.min = min;
        return this;
    }

    
Returns the maximum number of documents or index keys to scan when executing the query.
A zero value or less will be ignored, and indicates that the driver should respect the server's default value.

Returns:the maxScan
Since:3.5
Deprecated:Deprecated as of MongoDB 4.0 release
/**
     * Returns the maximum number of documents or index keys to scan when executing the query.
     *
     * A zero value or less will be ignored, and indicates that the driver should respect the server's default value.
     *
     * @return the maxScan
     * @since 3.5
     * @deprecated Deprecated as of MongoDB 4.0 release
     */
    @Deprecated
    public long getMaxScan() {
        return maxScan;
    }

    
Sets the maximum number of documents or index keys to scan when executing the query.
A zero value or less will be ignored, and indicates that the driver should respect the server's default value.

Params:
  • maxScan – the maxScan
Returns:this
Since:3.5
Deprecated:Deprecated as of MongoDB 4.0 release
/**
     * Sets the maximum number of documents or index keys to scan when executing the query.
     *
     * A zero value or less will be ignored, and indicates that the driver should respect the server's default value.
     *
     * @param maxScan the maxScan
     * @return this
     * @since 3.5
     * @deprecated Deprecated as of MongoDB 4.0 release
     */
    @Deprecated
    public FindOptions maxScan(final long maxScan) {
        this.maxScan = maxScan;
        return this;
    }

    
Returns the returnKey. If true the find operation will return only the index keys in the resulting documents.
Default value is false. If returnKey is true and the find command does not use an index, the returned documents will be empty.

Returns:the returnKey
Since:3.5
/**
     * Returns the returnKey. If true the find operation will return only the index keys in the resulting documents.
     *
     * Default value is false. If returnKey is true and the find command does not use an index, the returned documents will be empty.
     *
     * @return the returnKey
     * @since 3.5
     */
    public boolean isReturnKey() {
        return returnKey;
    }

    
Sets the returnKey. If true the find operation will return only the index keys in the resulting documents.

Params:
  • returnKey – the returnKey
Returns:this
Since:3.5
/**
     * Sets the returnKey. If true the find operation will return only the index keys in the resulting documents.
     *
     * @param returnKey the returnKey
     * @return this
     * @since 3.5
     */
    public FindOptions returnKey(final boolean returnKey) {
        this.returnKey = returnKey;
        return this;
    }

    
Returns the showRecordId.
Determines whether to return the record identifier for each document. If true, adds a field $recordId to the returned documents.
The default is false.

Returns:the showRecordId
Since:3.5
/**
     * Returns the showRecordId.
     *
     * Determines whether to return the record identifier for each document. If true, adds a field $recordId to the returned documents.
     * The default is false.
     *
     * @return the showRecordId
     * @since 3.5
     */
    public boolean isShowRecordId() {
        return showRecordId;
    }

    
Sets the showRecordId. Set to true to add a field $recordId to the returned documents. 
Params:
  • showRecordId – the showRecordId
Returns:this
Since:3.5
/**
     * Sets the showRecordId. Set to true to add a field {@code $recordId} to the returned documents.
     *
     * @param showRecordId the showRecordId
     * @return this
     * @since 3.5
     */
    public FindOptions showRecordId(final boolean showRecordId) {
        this.showRecordId = showRecordId;
        return this;
    }

    
Returns the snapshot.
Prevents the cursor from returning a document more than once because of an intervening write operation. The default is false.

Returns:the snapshot
Since:3.5
Deprecated:Deprecated in MongoDB 3.6 release and removed in MongoDB 4.0 release
/**
     * Returns the snapshot.
     *
     * Prevents the cursor from returning a document more than once because of an intervening write operation. The default is false.
     *
     * @return the snapshot
     * @since 3.5
     * @deprecated Deprecated in MongoDB 3.6 release and removed in MongoDB 4.0 release
     */
    @Deprecated
    public boolean isSnapshot() {
        return snapshot;
    }

    
Sets the snapshot.
If true it prevents the cursor from returning a document more than once because of an intervening write operation.

Params:
  • snapshot – the snapshot
Returns:this
Since:3.5
Deprecated:Deprecated in MongoDB 3.6 release and removed in MongoDB 4.0 release
/**
     * Sets the snapshot.
     *
     * If true it prevents the cursor from returning a document more than once because of an intervening write operation.
     *
     * @param snapshot the snapshot
     * @return this
     * @since 3.5
     * @deprecated Deprecated in MongoDB 3.6 release and removed in MongoDB 4.0 release
     */
    @Deprecated
    public FindOptions snapshot(final boolean snapshot) {
        this.snapshot = snapshot;
        return this;
    }

    @Override
    public String toString() {
        return "FindOptions{"
                + "batchSize=" + batchSize
                + ", limit=" + limit
                + ", modifiers=" + modifiers
                + ", projection=" + projection
                + ", maxTimeMS=" + maxTimeMS
                + ", maxAwaitTimeMS=" + maxAwaitTimeMS
                + ", skip=" + skip
                + ", sort=" + sort
                + ", cursorType=" + cursorType
                + ", noCursorTimeout=" + noCursorTimeout
                + ", oplogReplay=" + oplogReplay
                + ", partial=" + partial
                + ", collation=" + collation
                + ", comment='" + comment + "'"
                + ", hint=" + hint
                + ", max=" + max
                + ", min=" + min
                + ", maxScan=" + maxScan
                + ", returnKey=" + returnKey
                + ", showRecordId=" + showRecordId
                + ", snapshot=" + snapshot
                + "}";
    }
}