java.lang.Object
- dev.morphia.query.QueryImpl<T>

Type Parameters:

T - The type we will be querying for, and returning.

All Implemented Interfaces:

Criteria, CriteriaContainer, Query<T>
```
public class QueryImpl<T>
extends Object
implements CriteriaContainer, Query<T>
```
Implementation of Query

Constructor Summary

Constructors
Constructor Description

QueryImpl(Class<T> clazz, Datastore datastore)
Creates a Query for the given type and collection

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`add(Criteria... criteria)`	Adds Criteria to this container
`CriteriaContainer`	`and(Criteria... criteria)`	Ands Criteria with this CriteriaContainer.
`void`	`attach(CriteriaContainer container)`	Used to add this Criteria to a CriteriaContainer
`long`	`count()`	Count the total number of values in the result, ignoring limit and offset
`long`	`count(CountOptions options)`	Count the total number of values in the result, ignoring limit and offset
`FieldEnd<? extends CriteriaContainer>`	`criteria(String field)`	Creates a criteria against a field
`T`	`delete(FindAndDeleteOptions options)`	Deletes an entity from the database and returns it.
`Query<T>`	`disableValidation()`	Turns off validation (for all calls made after)
`Query<T>`	`enableValidation()`	Turns on validation (for all calls made after); by default validation is on
`boolean`	`equals(Object o)`
`dev.morphia.query.internal.MorphiaCursor<T>`	`execute()`	Execute the query and get the results.
`dev.morphia.query.internal.MorphiaCursor<T>`	`execute(FindOptions options)`	Execute the query and get the results.
`Map<String,Object>`	`explain(FindOptions options)`	Provides information on the query plan.
`FieldEnd<? extends Query<T>>`	`field(String name)`	Fluent query interface: `createQuery(Ent.class).field("count").greaterThan(7)...`
`Query<T>`	`filter(String condition, Object value)`	Create a filter based on the specified condition and value.
`T`	`first()`	Gets the first entity in the result set.
`T`	`first(FindOptions options)`	Gets the first entity in the result set.
`com.mongodb.client.MongoCollection<T>`	`getCollection()`
`protected Datastore`	`getDatastore()`
`Class<T>`	`getEntityClass()`
`String`	`getFieldName()`
`org.bson.Document`	`getFieldsObject()`
`String`	`getLoggedQuery()`
`org.bson.Document`	`getSort()`
`int`	`hashCode()`
`boolean`	`isValidatingNames()`
`dev.morphia.query.internal.MorphiaKeyCursor<T>`	`keys()`	Execute the query and get the results (as a `MorphiaCursor<Key<T>>`)
`dev.morphia.query.internal.MorphiaKeyCursor<T>`	`keys(FindOptions options)`	Execute the query and get the results (as a `MorphiaCursor<Key<T>>`)
`Modify<T>`	`modify()`	Create a modify operation based on this query
`Modify<T>`	`modify(UpdateOperations<T> operations)`	This is only intended for migration of legacy uses of UpdateOperations
`CriteriaContainer`	`or(Criteria... criteria)`	Ors Criteria with this CriteriaContainer.
`Query<T>`	`order(Meta sort)`	Sorts based on a metadata (defines return order).
`Query<T>`	`order(Sort... sorts)`	Sorts based on a specified sort keys (defines return order).
`org.bson.Document`	`prepareQuery()`	Converts the query to a Document and updates for any discriminator values as my be necessary
`Query<T>`	`project(Meta meta)`	Adds a metadata field to a projection.
`Query<T>`	`project(String field, boolean include)`	Adds a field to the projection clause.
`Query<T>`	`project(String field, ArraySlice slice)`	Adds an sliced array field to a projection.
`com.mongodb.client.result.DeleteResult`	`remove(DeleteOptions options)`	Deletes documents matching this query.
`void`	`remove(Criteria criteria)`	Removes Criteria to this container
`Query<T>`	`retrieveKnownFields()`	Limits the fields retrieved to those of the query type -- dangerous with interfaces and abstract classes
`Query<T>`	`search(String search)`	Perform a text search on the content of the fields indexed with a text index..
`Query<T>`	`search(String search, String language)`	Perform a text search on the content of the fields indexed with a text index..
`void`	`setQueryObject(org.bson.Document query)`	Sets query structure directly
`org.bson.Document`	`toDocument()`
`String`	`toString()`
`Update<T>`	`update()`	Creates an update operation based on this query
`Update<T>`	`update(UpdateOperations operations)`	Deprecated, for removal: This API element is subject to removal in a future version.
`Update<T>`	`update(org.bson.Document document)`	Deprecated, for removal: This API element is subject to removal in a future version.
`Query<T>`	`where(String js)`	Limit the query using this javascript block; only one per query

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface dev.morphia.query.Query
delete, delete, explain, find, find, remove

- Constructor Detail
  - QueryImpl
```
public QueryImpl(Class<T> clazz,
                 Datastore datastore)
```
    Creates a Query for the given type and collection
    
    Parameters:
    
    clazz - the type to return
    
    datastore - the Datastore to use
- Method Detail
  - disableValidation
```
public Query<T> disableValidation()
```
    Description copied from interface: Query
    
    Turns off validation (for all calls made after)
    
    Specified by:
    
    disableValidation in interface Query<T>
    
    Returns:
    
    this
  - enableValidation
```
public Query<T> enableValidation()
```
    Description copied from interface: Query
    
    Turns on validation (for all calls made after); by default validation is on
    
    Specified by:
    
    enableValidation in interface Query<T>
    
    Returns:
    
    this
  - explain
```
public Map<String,Object> explain(FindOptions options)
```
    Description copied from interface: Query
    
    Provides information on the query plan. The query plan is the plan the server uses to find the matches for a query. This information may be useful when optimizing a query.
    
    Specified by:
    
    explain in interface Query<T>
    
    Parameters:
    
    options - the options to apply to the explain operation
    
    Returns:
    
    Map describing the process used to return the query results.
  - field
```
public FieldEnd<? extends Query<T>> field(String name)
```
    Description copied from interface: Query
    
    Fluent query interface: createQuery(Ent.class).field("count").greaterThan(7)...
    
    Specified by:
    
    field in interface Query<T>
    
    Parameters:
    
    name - the field
    
    Returns:
    
    the FieldEnd to define the criteria
  - filter
```
public Query<T> filter(String condition,
                       Object value)
```
    Description copied from interface: Query
    Create a filter based on the specified condition and value.
    
    Note: Property is in the form of "name op" ("age >").
    
    Valid operators are ["=", "==","!=", "<>", ">", "<", ">=", "<=", "in", "nin", "all", "size", "exists"]
    
    Examples:
    
    filter("yearsOfOperation >", 5)
    
    filter("rooms.maxBeds >=", 2)
    
    filter("rooms.bathrooms exists", 1)
    
    filter("stars in", new Long[]{3, 4}) //3 and 4 stars (midrange?)
    
    filter("quantity mod", new Long[]{4, 0}) // customers ordered in packs of 4)
    
    filter("age >=", age)
    
    filter("age =", age)
    
    filter("age", age) (if no operator, = is assumed)
    
    filter("age !=", age)
    
    filter("age in", ageList)
    
    filter("customers.loyaltyYears in", yearsList)
    
    You can filter on id properties if this query is restricted to a Class.
    Specified by:
    
    filter in interface Query<T>
    
    Parameters:
    
    condition - the condition to apply
    
    value - the value to apply against
    
    Returns:
    
    this
  - order
```
public Query<T> order(Meta sort)
```
    Description copied from interface: Query
    
    Sorts based on a metadata (defines return order). Example: order(Meta.textScore()) ({textScore : { $meta: "textScore" }})
    
    Specified by:
    
    order in interface Query<T>
    
    Parameters:
    
    sort - the sort order to apply
    
    Returns:
    
    this
  - order
```
public Query<T> order(Sort... sorts)
```
    Description copied from interface: Query
    
    Sorts based on a specified sort keys (defines return order).
    
    Specified by:
    
    order in interface Query<T>
    
    Parameters:
    
    sorts - the sort order to apply
    
    Returns:
    
    this
  - project
```
public Query<T> project(String field,
                        boolean include)
```
    Description copied from interface: Query
    
    Adds a field to the projection clause. Passing true for include will include the field in the results. Projected fields must all be inclusions or exclusions. You can not include and exclude fields at the same time with the exception of the _id field. The _id field is always included unless explicitly suppressed.
    
    Specified by:
    
    project in interface Query<T>
    
    Parameters:
    
    field - the field to project
    
    include - true to include the field in the results
    
    Returns:
    
    this
    
    See Also:
    
    Project Fields to Return from Query
  - project
```
public Query<T> project(String field,
                        ArraySlice slice)
```
    Description copied from interface: Query
    
    Adds an sliced array field to a projection.
    
    Specified by:
    
    project in interface Query<T>
    
    Parameters:
    
    field - the field to project
    
    slice - the options for projecting an array field
    
    Returns:
    
    this
    
    See Also:
    
    Project Fields to Return from Query
  - project
```
public Query<T> project(Meta meta)
```
    Description copied from interface: Query
    
    Adds a metadata field to a projection.
    
    Specified by:
    
    project in interface Query<T>
    
    Parameters:
    
    meta - the metadata option for projecting
    
    Returns:
    
    this
    
    See Also:
    
    Project Fields to Return from Query
  - retrieveKnownFields
```
public Query<T> retrieveKnownFields()
```
    Description copied from interface: Query
    
    Limits the fields retrieved to those of the query type -- dangerous with interfaces and abstract classes
    
    Specified by:
    
    retrieveKnownFields in interface Query<T>
    
    Returns:
    
    this
  - search
```
public Query<T> search(String search)
```
    Description copied from interface: Query
    
    Perform a text search on the content of the fields indexed with a text index..
    
    Specified by:
    
    search in interface Query<T>
    
    Parameters:
    
    search - the text to search for
    
    Returns:
    
    the Query to enable chaining of commands
  - search
```
public Query<T> search(String search,
                       String language)
```
    Description copied from interface: Query
    
    Perform a text search on the content of the fields indexed with a text index..
    
    Specified by:
    
    search in interface Query<T>
    
    Parameters:
    
    search - the text to search for
    
    language - the language to use during the search
    
    Returns:
    
    the Query to enable chaining of commands
  - where
```
public Query<T> where(String js)
```
    Description copied from interface: Query
    
    Limit the query using this javascript block; only one per query
    
    Specified by:
    
    where in interface Query<T>
    
    Parameters:
    
    js - the javascript block to apply
    
    Returns:
    
    this
  - keys
```
public dev.morphia.query.internal.MorphiaKeyCursor<T> keys()
```
    Description copied from interface: Query
    
    Execute the query and get the results (as a MorphiaCursor<Key<T>>)
    
    Specified by:
    
    keys in interface Query<T>
    
    Returns:
    
    the keys of the documents returned by this query
  - keys
```
public dev.morphia.query.internal.MorphiaKeyCursor<T> keys(FindOptions options)
```
    Description copied from interface: Query
    
    Execute the query and get the results (as a MorphiaCursor<Key<T>>)
    
    Specified by:
    
    keys in interface Query<T>
    
    Parameters:
    
    options - the options to apply to the find operation
    
    Returns:
    
    the keys of the documents returned by this query
  - count
```
public long count()
```
    Description copied from interface: Query
    
    Count the total number of values in the result, ignoring limit and offset
    
    Specified by:
    
    count in interface Query<T>
    
    Returns:
    
    the count
  - count
```
public long count(CountOptions options)
```
    Description copied from interface: Query
    
    Count the total number of values in the result, ignoring limit and offset
    
    Specified by:
    
    count in interface Query<T>
    
    Parameters:
    
    options - the options to apply to the count operation
    
    Returns:
    
    the count
  - execute
```
public dev.morphia.query.internal.MorphiaCursor<T> execute()
```
    Description copied from interface: Query
    
    Execute the query and get the results.
    *note* the return type of this will change in 2.0.
    
    Specified by:
    
    execute in interface Query<T>
    
    Returns:
    
    a MorphiaCursor
    
    See Also:
    
    Query.execute(FindOptions)
  - execute
```
public dev.morphia.query.internal.MorphiaCursor<T> execute(FindOptions options)
```
    Description copied from interface: Query
    
    Execute the query and get the results.
    
    Specified by:
    
    execute in interface Query<T>
    
    Parameters:
    
    options - the options to apply to the find operation
    
    Returns:
    
    a MorphiaCursor
  - first
```
public T first()
```
    Description copied from interface: Query
    
    Gets the first entity in the result set. Obeys the Query offset value.
    
    Specified by:
    
    first in interface Query<T>
    
    Returns:
    
    the only instance in the result, or null if the result set is empty.
  - first
```
public T first(FindOptions options)
```
    Description copied from interface: Query
    
    Gets the first entity in the result set. Obeys the Query offset value.
    
    Specified by:
    
    first in interface Query<T>
    
    Parameters:
    
    options - the options to apply to the find operation
    
    Returns:
    
    the only instance in the result, or null if the result set is empty.
  - delete
```
public T delete(FindAndDeleteOptions options)
```
    Description copied from interface: Query
    
    Deletes an entity from the database and returns it.
    
    Specified by:
    
    delete in interface Query<T>
    
    Parameters:
    
    options - the options to apply
    
    Returns:
    
    the deleted entity
  - modify
```
public Modify<T> modify()
```
    Description copied from interface: Query
    
    Create a modify operation based on this query
    
    Specified by:
    
    modify in interface Query<T>
    
    Returns:
    
    the modify operation
  - modify
```
public Modify<T> modify(UpdateOperations<T> operations)
```
    Description copied from interface: Query
    
    This is only intended for migration of legacy uses of UpdateOperations
    
    Specified by:
    
    modify in interface Query<T>
    
    Parameters:
    
    operations - the prebuilt operations
    
    Returns:
    
    the Modify instance
  - remove
```
public com.mongodb.client.result.DeleteResult remove(DeleteOptions options)
```
    Description copied from interface: Query
    
    Deletes documents matching this query. Optionally deleting the first or all matched documents.
    
    Specified by:
    
    remove in interface Query<T>
    
    Parameters:
    
    options - the options to apply
    
    Returns:
    
    the results
  - update
```
public Update<T> update()
```
    Description copied from interface: Query
    
    Creates an update operation based on this query
    
    Specified by:
    
    update in interface Query<T>
    
    Returns:
    
    the update operation
  - update
```
@Deprecated(since="2.0",
            forRemoval=true)
public Update<T> update(org.bson.Document document)
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    
    Specified by:
    
    update in interface Query<T>
    
    Parameters:
    
    document - the seed document
    
    Returns:
    
    the update operation
  - update
```
@Deprecated(since="2.0",
            forRemoval=true)
public Update<T> update(UpdateOperations operations)
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    
    Specified by:
    
    update in interface Query<T>
    
    Parameters:
    
    operations - the prebuilt operations
    
    Returns:
    
    the Updates instance
  - getLoggedQuery
```
public String getLoggedQuery()
```
    Specified by:
    
    getLoggedQuery in interface Query<T>
    
    Returns:
    
    the logged query
    
    Developer note.
    This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
  - getCollection
```
public com.mongodb.client.MongoCollection<T> getCollection()
```
    Returns:
    
    the collection this query targets
    
    Developer note.
    This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
  - toDocument
```
public org.bson.Document toDocument()
```
    Specified by:
    
    toDocument in interface Criteria
    
    Returns:
    
    the Document form of this type
  - attach
```
public void attach(CriteriaContainer container)
```
    Description copied from interface: Criteria
    
    Used to add this Criteria to a CriteriaContainer
    
    Specified by:
    
    attach in interface Criteria
    
    Parameters:
    
    container - the container to add to
  - getFieldName
```
public String getFieldName()
```
    Specified by:
    
    getFieldName in interface Criteria
    
    Returns:
    
    the field name for the criteria
  - add
```
public void add(Criteria... criteria)
```
    Description copied from interface: CriteriaContainer
    
    Adds Criteria to this container
    
    Specified by:
    
    add in interface CriteriaContainer
    
    Parameters:
    
    criteria - the criteria to add
  - and
```
public CriteriaContainer and(Criteria... criteria)
```
    Description copied from interface: CriteriaContainer
    
    Ands Criteria with this CriteriaContainer.
    
    Specified by:
    
    and in interface CriteriaContainer
    
    Specified by:
    
    and in interface Query<T>
    
    Parameters:
    
    criteria - the criteria
    
    Returns:
    
    the container
  - criteria
```
public FieldEnd<? extends CriteriaContainer> criteria(String field)
```
    Description copied from interface: CriteriaContainer
    
    Creates a criteria against a field
    
    Specified by:
    
    criteria in interface CriteriaContainer
    
    Specified by:
    
    criteria in interface Query<T>
    
    Parameters:
    
    field - the field
    
    Returns:
    
    the FieldEnd to define the criteria to apply
  - or
```
public CriteriaContainer or(Criteria... criteria)
```
    Description copied from interface: CriteriaContainer
    
    Ors Criteria with this CriteriaContainer.
    
    Specified by:
    
    or in interface CriteriaContainer
    
    Specified by:
    
    or in interface Query<T>
    
    Parameters:
    
    criteria - the criteria
    
    Returns:
    
    the container
  - remove
```
public void remove(Criteria criteria)
```
    Description copied from interface: CriteriaContainer
    
    Removes Criteria to this container
    
    Specified by:
    
    remove in interface CriteriaContainer
    
    Parameters:
    
    criteria - the criteria to remove
  - getEntityClass
```
public Class<T> getEntityClass()
```
    Returns:
    
    the entity Class.
    
    Developer note.
    This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
  - setQueryObject
```
public void setQueryObject(org.bson.Document query)
```
    Sets query structure directly
    
    Parameters:
    
    query - the Document containing the query
  - getSort
```
public org.bson.Document getSort()
```
    Returns:
    
    the Mongo sort Document.
    
    Developer note.
    This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
  - isValidatingNames
```
public boolean isValidatingNames()
```
    Returns:
    
    true if field names are being validated
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getFieldsObject
```
public org.bson.Document getFieldsObject()
```
    Returns:
    
    the Mongo fields Document.
    
    Developer note.
    This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
  - prepareQuery
```
public org.bson.Document prepareQuery()
```
    Converts the query to a Document and updates for any discriminator values as my be necessary
    
    Returns:
    
    th query
    
    Developer note.
    This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
  - getDatastore
```
protected Datastore getDatastore()
```

Class QueryImpl<T>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface dev.morphia.query.Query

Constructor Detail

QueryImpl

Method Detail

disableValidation

enableValidation

explain

field

filter

order

order

project

project

project

retrieveKnownFields

search

search

where

keys

keys

count

count

execute

execute

first

first

delete

modify

modify

remove

update

update

update

getLoggedQuery

getCollection

toDocument

attach

getFieldName

add

and

criteria

or

remove

getEntityClass

setQueryObject

getSort

isValidatingNames

hashCode

equals

toString

getFieldsObject

prepareQuery

getDatastore