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

Type Parameters:

T - the type

All Implemented Interfaces:

Criteria, CriteriaContainer, Query<T>, Iterable<T>
```
public class MorphiaQuery<T>
extends Object
implements Query<T>
```
Developer note.
This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`MorphiaQuery(Datastore datastore)`
`protected`	`MorphiaQuery(Datastore datastore, Class<T> clazz, org.bson.Document query)`
`protected`	`MorphiaQuery(Datastore datastore, String collectionName, Class<T> clazz)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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
`com.mongodb.client.result.DeleteResult`	`delete(DeleteOptions options)`	Deletes documents matching this query.
`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)`
`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(Filter... additional)`	Adds filters to this query.
`Query<T>`	`filter(String condition, Object value)`	Create a filter based on the specified condition and value.
`T`	`findAndDelete(FindAndDeleteOptions options)`	Deletes an entity from the database and returns it.
`T`	`first()`	Gets the first entity in the result set.
`T`	`first(FindOptions options)`	Gets the first entity in the result set.
`Class<T>`	`getEntityClass()`
`int`	`hashCode()`
`dev.morphia.query.internal.MorphiaCursor<T>`	`iterator()`	Execute the query and get the results.
`dev.morphia.query.internal.MorphiaCursor<T>`	`iterator(FindOptions options)`	Execute the query and get the results.
`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(UpdateOperator first, UpdateOperator... updates)`	Create a modify operation based on this query
`Query<T>`	`search(String searchText)`	Perform a text search on the content of the fields indexed with a text index..
`Query<T>`	`search(String searchText, String language)`	Perform a text search on the content of the fields indexed with a text index..
`org.bson.Document`	`toDocument()`	Converts the query to a Document and updates for any discriminator values as my be necessary
`String`	`toString()`
`Update<T>`	`update(UpdateOperator first, UpdateOperator... updates)`	Creates an update operation based on this query

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

Methods inherited from interface dev.morphia.query.Criteria
attach, getFieldName

Methods inherited from interface dev.morphia.query.CriteriaContainer
add, remove

Methods inherited from interface java.lang.Iterable
forEach, spliterator

Methods inherited from interface dev.morphia.query.Query
and, criteria, delete, execute, execute, explain, find, find, findAndDelete, modify, or, retrieveKnownFields, update

- Constructor Detail
  - MorphiaQuery
```
protected MorphiaQuery(Datastore datastore)
```
  - MorphiaQuery
```
protected MorphiaQuery(Datastore datastore,
                       String collectionName,
                       Class<T> clazz)
```
  - MorphiaQuery
```
protected MorphiaQuery(Datastore datastore,
                       Class<T> clazz,
                       org.bson.Document query)
```
- Method Detail
  - 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
  - delete
```
public com.mongodb.client.result.DeleteResult delete(DeleteOptions options)
```
    Description copied from interface: Query
    
    Deletes documents matching this query. Optionally deleting the first or all matched documents.
    
    Specified by:
    
    delete in interface Query<T>
    
    Parameters:
    
    options - the options to apply
    
    Returns:
    
    the results
  - 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
  - filter
```
public Query<T> filter(Filter... additional)
```
    Description copied from interface: Query
    
    Adds filters to this query. This operation is cumulative.
    
    Specified by:
    
    filter in interface Query<T>
    
    Parameters:
    
    additional - the filters to add
    
    Returns:
    
    this
  - findAndDelete
```
public T findAndDelete(FindAndDeleteOptions options)
```
    Description copied from interface: Query
    
    Deletes an entity from the database and returns it.
    
    Specified by:
    
    findAndDelete in interface Query<T>
    
    Parameters:
    
    options - the options to apply
    
    Returns:
    
    the deleted entity
  - 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.
  - getEntityClass
```
public Class<T> getEntityClass()
```
    Specified by:
    
    getEntityClass in interface Query<T>
    
    Returns:
    
    the entity Class.
  - iterator
```
public dev.morphia.query.internal.MorphiaCursor<T> iterator()
```
    Description copied from interface: Query
    
    Execute the query and get the results.
    
    Specified by:
    
    iterator in interface Iterable<T>
    
    Specified by:
    
    iterator in interface Query<T>
    
    Returns:
    
    a MorphiaCursor
    
    See Also:
    
    Query.iterator(FindOptions)
  - iterator
```
public dev.morphia.query.internal.MorphiaCursor<T> iterator(FindOptions options)
```
    Description copied from interface: Query
    
    Execute the query and get the results.
    
    Specified by:
    
    iterator in interface Query<T>
    
    Parameters:
    
    options - the options to apply to the find operation
    
    Returns:
    
    a MorphiaCursor
  - 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
  - modify
```
public Modify<T> modify(UpdateOperator first,
                        UpdateOperator... updates)
```
    Description copied from interface: Query
    
    Create a modify operation based on this query
    
    Specified by:
    
    modify in interface Query<T>
    
    Parameters:
    
    first - the first and required update operator
    
    updates - lists the set of updates to apply
    
    Returns:
    
    the modify operation
  - search
```
public Query<T> search(String searchText)
```
    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:
    
    searchText - the text to search for
    
    Returns:
    
    the Query to enable chaining of commands
  - search
```
public Query<T> search(String searchText,
                       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:
    
    searchText - the text to search for
    
    language - the language to use during the search
    
    Returns:
    
    the Query to enable chaining of commands
  - toDocument
```
public org.bson.Document toDocument()
```
    Converts the query to a Document and updates for any discriminator values as my be necessary
    
    Specified by:
    
    toDocument in interface Criteria
    
    Specified by:
    
    toDocument in interface Query<T>
    
    Returns:
    
    the query
    
    Developer note.
    This is an internal item. Its function and presence are subject to change without warning. Its use is highly discouraged.
  - update
```
public Update<T> update(UpdateOperator first,
                        UpdateOperator... updates)
```
    Description copied from interface: Query
    
    Creates an update operation based on this query
    
    Specified by:
    
    update in interface Query<T>
    
    Parameters:
    
    first - the first and required update operator
    
    updates - lists the set of updates to apply
    
    Returns:
    
    the update operation
  - 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

Class MorphiaQuery<T>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface dev.morphia.query.Criteria

Methods inherited from interface dev.morphia.query.CriteriaContainer

Methods inherited from interface java.lang.Iterable

Methods inherited from interface dev.morphia.query.Query

Constructor Detail

MorphiaQuery

MorphiaQuery

MorphiaQuery

Method Detail

count

count

delete

disableValidation

enableValidation

explain

field

filter

filter

findAndDelete

first

first

getEntityClass

iterator

iterator

keys

keys

modify

search

search

toDocument

update

hashCode

equals

toString