javax.jdo

## Interface JDOQLTypedQuery<T>

- Type Parameters:
    `T` - candidate type for this query
  All Superinterfaces:
    AutoCloseable, Closeable, Serializable

      public interface JDOQLTypedQuery<T>
      extends Serializable, Closeable

  Interface for a type-safe refactorable JDOQL query, using a fluent API, based around expressions. Note that a JDOQLTypedQuery only supports named parameters, and the values of these parameters should be set using the relevant setter methods prior to execution, and that the values for the parameters will only be retained until the subsequent query execution.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `QUERY_CLASS_PREFIX`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Default Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `cancel(Thread thread)` Method to cancel an executing query in the specified thread.
    `void` | `cancelAll()` Method to cancel any executing queries.
    `PersistableExpression<T>` | `candidate()` Method to return an expression for the candidate of the query.
    `CharacterExpression` | `characterParameter(String name)` Method to return a character parameter for the query.
    `void` | `close(Object result)` Method to close the specified query result.
    `void` | `closeAll()` Method to close all query results from this query.
    `CollectionExpression<?,?>` | `collectionParameter(String name)` Method to return a collection parameter for the query.
    `default <E> CollectionExpression<Collection<E>,E>` | `collectionParameter(String name, Class<E> elementType)` Method to return a collection parameter for the query.
    `JDOQLTypedQuery<T>` | `datastoreReadTimeoutMillis(Integer interval)` Set the datastore read timeout (millis).
    `JDOQLTypedQuery<T>` | `datastoreWriteTimeoutMillis(Integer interval)` Set the datastore write timeout (millis).
    `DateExpression` | `dateParameter(String name)` Method to return a date parameter for the query.
    `DateTimeExpression` | `datetimeParameter(String name)` Method to return a datetime parameter for the query.
    `long` | `deletePersistentAll()` Method to execute the query deleting the affected instances.
    `JDOQLTypedQuery<T>` | `excludeSubclasses()` Method to remove subclasses (of the candidate) from the query
    `List<T>` | `executeList()` Method to execute the query where there are (potentially) multiple rows and we are returning the candidate type.
    `List<Object>` | `executeResultList()` Method to execute the query where there are (potentially) multiple rows and we have a result defined but no result class.
    `<R> List<R>` | `executeResultList(Class<R> resultCls)` Method to execute the query where there are (potentially) multiple rows and we are returning either the result type.
    `Object` | `executeResultUnique()` Method to execute the query where there is a single row and we have a result defined but no result class.
    `<R> R` | `executeResultUnique(Class<R> resultCls)` Method to execute the query where there is a single row and we are returning either the result type.
    `T` | `executeUnique()` Method to execute the query where there is a single row and we are returning the candidate type.
    `JDOQLTypedQuery<T>` | `extension(String key, Object value)` Specify an extension for this query.
    `JDOQLTypedQuery<T>` | `extensions(Map values)` Specify a map of extensions for this query.
    `JDOQLTypedQuery<T>` | `filter(BooleanExpression expr)` Method to set the filter of the query.
    `Integer` | `getDatastoreReadTimeoutMillis()` Get the effective timeout setting for read operations.
    `Integer` | `getDatastoreWriteTimeoutMillis()` Get the effective timeout setting for write operations.
    `FetchPlan` | `getFetchPlan()` Accessor for the FetchPlan for this query
    `boolean` | `getIgnoreCache()` Get the ignoreCache option setting.
    `PersistenceManager` | `getPersistenceManager()` Accessor for the PersistenceManager for this query
    `Boolean` | `getSerializeRead()` Return the current value of the serializeRead property.
    `JDOQLTypedQuery<T>` | `groupBy(Expression<?>... exprs)` Method to set the grouping(s) for the query.
    `JDOQLTypedQuery<T>` | `having(Expression<?> expr)` Method to set the having clause of the query.
    `<V> IfThenElseExpression<V>` | `ifThen(BooleanExpression cond, V thenValue)` Method to return an "IF (...) ...
    `<V> IfThenElseExpression<V>` | `ifThen(Class<V> type, BooleanExpression cond, Expression<V> thenValueExpr)` Method to return an "IF (...) ...
    `<V> IfThenElseExpression<V>` | `ifThenElse(BooleanExpression cond, Expression<V> thenValueExpr, V elseValue)` Method to return an "IF (...) ...
    `<V> IfThenElseExpression<V>` | `ifThenElse(BooleanExpression cond, V thenValue, Expression<V> elseValueExpr)` Method to return an "IF (...) ...
    `<V> IfThenElseExpression<V>` | `ifThenElse(BooleanExpression cond, V thenValue, V elseValue)` Method to return an "IF (...) ...
    `<V> IfThenElseExpression<V>` | `ifThenElse(Class<V> type, BooleanExpression cond, Expression<V> thenValueExpr, Expression<V> elseValueExpr)` Method to return an "IF (...) ...
    `JDOQLTypedQuery<T>` | `ignoreCache(boolean flag)` Set whether we to ignore the cache with this query.
    `JDOQLTypedQuery<T>` | `includeSubclasses()` Method to include subclasses (of the candidate) to the query
    `boolean` | `isUnmodifiable()` The unmodifiable flag, when set, disallows further modification of the query, except for specifying the range, result class, and ignoreCache option.
    `ListExpression<?,?>` | `listParameter(String name)` Method to return a list parameter for the query.
    `default <E> ListExpression<List<E>,E>` | `listParameter(String name, Class<E> elementType)` Method to return a list parameter for the query.
    `MapExpression<?,?,?>` | `mapParameter(String name)` Method to return a map parameter for the query.
    `default <K,V> MapExpression<Map<K,V>,K,V>` | `mapParameter(String name, Class<K> keyType, Class<V> valueType)` Method to return a map parameter for the query.
    `NumericExpression<?>` | `numericParameter(String name)` Method to return a numeric parameter for the query.
    `default <N> NumericExpression<N>` | `numericParameter(String name, Class<N> type)` Method to return a numeric parameter for the query.
    `JDOQLTypedQuery<T>` | `orderBy(OrderExpression<?>... orderExprs)` Method to set the ordering of the query.
    `<P> Expression<P>` | `parameter(String name, Class<P> type)` Method to return a parameter for the query.
    `JDOQLTypedQuery<T>` | `range(Expression<?> paramLowerInclExpr, Expression<?> paramUpperExclExpr)` Method to set the range of any required results, using parameters (expressions).
    `JDOQLTypedQuery<T>` | `range(long lowerIncl, long upperExcl)` Method to set the range of any required results, using long values.
    `JDOQLTypedQuery<T>` | `range(NumericExpression<?> lowerInclExpr, NumericExpression<?> upperExclExpr)` Method to set the range of any required results, using expressions.
    `JDOQLTypedQuery<T>` | `result(boolean distinct, Expression<?>... exprs)` Method to set the result of the query.
    `JDOQLTypedQuery<T>` | `saveAsNamedQuery(String name)` Save the query, as it is currently defined, as a named query under the specified name.
    `JDOQLTypedQuery<T>` | `serializeRead(Boolean serialize)` Set whether we to lock all objects read by this query.
    `JDOQLTypedQuery<T>` | `setCandidates(Collection<T> candidates)` Method to set the candidates to use over which we are querying.
    `JDOQLTypedQuery<T>` | `setParameter(Expression<?> paramExpr, Object value)` Method to set a parameter value for the specified (parameter) expression when executing the query.
    `JDOQLTypedQuery<T>` | `setParameter(String paramName, Object value)` Method to set the value for a named parameter for use when executing the query.
    `JDOQLTypedQuery<T>` | `setParameters(Map<String,?> namedParamMap)` Method to set the named parameters on this query prior to execution.
    `StringExpression` | `stringParameter(String name)` Method to return a string parameter for the query.
    `<S> JDOQLTypedSubquery<S>` | `subquery(Class<S> candidate, String candidateAlias)` Method to return a subquery for use in this query.
    `<E> JDOQLTypedSubquery<E>` | `subquery(CollectionExpression<Collection<E>,E> candidateCollection, Class<E> candidate, String candidateAlias)` Method to return a correlated subquery for use in this query.
    `JDOQLTypedSubquery<T>` | `subquery(String candidateAlias)` Method to return a subquery for use in this query using the same candidate class as this query.
    `TimeExpression` | `timeParameter(String name)` Method to return a time parameter for the query.
    `String` | `toString()` Method to return the equivalent String form of this query (if applicable for the query language).
    `JDOQLTypedQuery<T>` | `unmodifiable()` Set to make this query unmodifiable hereafter.
    `<V> Expression<V>` | `variable(String name, Class<V> type)` Method to return a variable for this query.

    - ### Methods inherited from interface java.io.Closeable

      `close`

- - ### Field Detail

    - #### QUERY_CLASS_PREFIX

          static final String QUERY_CLASS_PREFIX

      See Also:
        Constant Field Values

  - ### Method Detail

    - #### candidate

          PersistableExpression<T> candidate()

      Method to return an expression for the candidate of the query. Cast the returned expression to the candidate "Q" type to be able to call methods on it. This calls the method "Q{type}.candidate(null)" The preference is to use the "Q{type}.candidate()" method for real type-safe handling.
      Returns:
        Expression for the candidate

    - #### parameter

          <P> Expression<P> parameter(String name,
                                      Class<P> type)

      Method to return a parameter for the query. Cast the returned parameter to the right type to be able to call methods on it. The preference is to use the "xxxParameter(String)" methods for real type-safe handling.
      Type Parameters:
        `P` - type for the parameter
      Parameters:
        `name` - Name of the parameter
        `type` - Java type of the parameter
      Returns:
        Expression for the parameter

    - #### stringParameter

          StringExpression stringParameter(String name)

      Method to return a string parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        StringExpression for the parameter

    - #### characterParameter

          CharacterExpression characterParameter(String name)

      Method to return a character parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        Expression for the parameter

    - #### numericParameter

          NumericExpression<?> numericParameter(String name)

      Method to return a numeric parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        NumericExpression for the parameter

    - #### numericParameter

          default <N> NumericExpression<N> numericParameter(String name,
                                                            Class<N> type)

      Method to return a numeric parameter for the query.
      Type Parameters:
        `N` - Type for the numeric parameter
      Parameters:
        `name` - Name of the parameter
        `type` - Type of the numeric parameter
      Returns:
        NumericExpression for the parameter

    - #### dateParameter

          DateExpression dateParameter(String name)

      Method to return a date parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        Expression for the parameter

    - #### timeParameter

          TimeExpression timeParameter(String name)

      Method to return a time parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        Expression for the parameter

    - #### datetimeParameter

          DateTimeExpression datetimeParameter(String name)

      Method to return a datetime parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        Expression for the parameter

    - #### collectionParameter

          CollectionExpression<?,?> collectionParameter(String name)

      Method to return a collection parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        Expression for the parameter

    - #### collectionParameter

          default <E> CollectionExpression<Collection<E>,E> collectionParameter(String name,
                                                                                Class<E> elementType)

      Method to return a collection parameter for the query.
      Type Parameters:
        `E` - Element type for the collection parameter
      Parameters:
        `name` - Name of the parameter
        `elementType` - Element type of the collection parameter
      Returns:
        Expression for the parameter

    - #### mapParameter

          MapExpression<?,?,?> mapParameter(String name)

      Method to return a map parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        Expression for the parameter

    - #### mapParameter

          default <K,V> MapExpression<Map<K,V>,K,V> mapParameter(String name,
                                                                 Class<K> keyType,
                                                                 Class<V> valueType)

      Method to return a map parameter for the query.
      Type Parameters:
        `K` - Key type for the map parameter
        `V` - Value type for the map parameter
      Parameters:
        `name` - Name of the parameter
        `keyType` - Key type of the map parameter
        `valueType` - Value type of the map parameter
      Returns:
        Expression for the parameter

    - #### listParameter

          ListExpression<?,?> listParameter(String name)

      Method to return a list parameter for the query.
      Parameters:
        `name` - Name of the parameter
      Returns:
        Expression for the parameter

    - #### listParameter

          default <E> ListExpression<List<E>,E> listParameter(String name,
                                                              Class<E> elementType)

      Method to return a list parameter for the query.
      Type Parameters:
        `E` - Element type for the list parameter
      Parameters:
        `name` - Name of the parameter
        `elementType` - Element type of the list parameter
      Returns:
        Expression for the parameter

    - #### variable

          <V> Expression<V> variable(String name,
                                     Class<V> type)

      Method to return a variable for this query. Cast the returned variable to the right type to be able to call methods on it.
      Type Parameters:
        `V` - type for the variable
      Parameters:
        `name` - Name of the variable
        `type` - Type of the variable
      Returns:
        Expression for the variable

    - #### setCandidates

          JDOQLTypedQuery<T> setCandidates(Collection<T> candidates)

      Method to set the candidates to use over which we are querying. If no candidates are set then the query is performed on the datastore.
      Parameters:
        `candidates` - The candidates
      Returns:
        The query

    - #### excludeSubclasses

          JDOQLTypedQuery<T> excludeSubclasses()

      Method to remove subclasses (of the candidate) from the query
      Returns:
        The query

    - #### includeSubclasses

          JDOQLTypedQuery<T> includeSubclasses()

      Method to include subclasses (of the candidate) to the query
      Returns:
        The query

    - #### filter

          JDOQLTypedQuery<T> filter(BooleanExpression expr)

      Method to set the filter of the query.
      Parameters:
        `expr` - Filter expression
      Returns:
        The query

    - #### ifThenElse

          <V> IfThenElseExpression<V> ifThenElse(Class<V> type,
                                                 BooleanExpression cond,
                                                 Expression<V> thenValueExpr,
                                                 Expression<V> elseValueExpr)

      Method to return an "IF (...) ... ELSE ..." expression for use in this query.
      Type Parameters:
        `V` - type for the IfThenElseExpression
      Parameters:
        `type` - The type returned by the IfElse.
        `cond` - The if condition
        `thenValueExpr` - Expression for value to return when the if expression is met
        `elseValueExpr` - Expression for value to return when the if expression is not met
      Returns:
        The IfThenElse expression

    - #### ifThenElse

          <V> IfThenElseExpression<V> ifThenElse(BooleanExpression cond,
                                                 V thenValue,
                                                 Expression<V> elseValueExpr)

      Method to return an "IF (...) ... ELSE ..." expression for use in this query.
      Type Parameters:
        `V` - type for the IfThenElseExpression
      Parameters:
        `cond` - The if condition
        `thenValue` - Value to return when the if expression is met
        `elseValueExpr` - Expression to return when the if expression is not met
      Returns:
        The IfThenElse expression

    - #### ifThenElse

          <V> IfThenElseExpression<V> ifThenElse(BooleanExpression cond,
                                                 Expression<V> thenValueExpr,
                                                 V elseValue)

      Method to return an "IF (...) ... ELSE ..." expression for use in this query.
      Type Parameters:
        `V` - type for the IfThenElseExpression
      Parameters:
        `cond` - The if condition
        `thenValueExpr` - Expression to return when the if expression is met
        `elseValue` - Value to return when the if expression is not met
      Returns:
        The IfThenElse expression

    - #### ifThenElse

          <V> IfThenElseExpression<V> ifThenElse(BooleanExpression cond,
                                                 V thenValue,
                                                 V elseValue)

      Method to return an "IF (...) ... ELSE ..." expression for use in this query.
      Type Parameters:
        `V` - type for the IfThenElseExpression
      Parameters:
        `cond` - The if condition
        `thenValue` - Value to return when the if expression is met
        `elseValue` - Value to return when the if expression is not met
      Returns:
        The IfThenElse expression

    - #### ifThen

          <V> IfThenElseExpression<V> ifThen(Class<V> type,
                                             BooleanExpression cond,
                                             Expression<V> thenValueExpr)

      Method to return an "IF (...) ... ELSE ..." expression for use in this query.
      Type Parameters:
        `V` - type for the IfThenElseExpression
      Parameters:
        `type` - The type returned by the IfElse.
        `cond` - The if condition
        `thenValueExpr` - Expression for value to return when the if expression is met
      Returns:
        The IfThenElse expression

    - #### ifThen

          <V> IfThenElseExpression<V> ifThen(BooleanExpression cond,
                                             V thenValue)

      Method to return an "IF (...) ... ELSE ..." expression for use in this query.
      Type Parameters:
        `V` - type for the IfThenElseExpression
      Parameters:
        `cond` - The if condition
        `thenValue` - Value to return when the if expression is met
      Returns:
        The IfThenElse expression

    - #### groupBy

          JDOQLTypedQuery<T> groupBy(Expression<?>... exprs)

      Method to set the grouping(s) for the query.
      Parameters:
        `exprs` - Grouping expression(s)
      Returns:
        The query

    - #### having

          JDOQLTypedQuery<T> having(Expression<?> expr)

      Method to set the having clause of the query.
      Parameters:
        `expr` - Having expression
      Returns:
        The query

    - #### orderBy

          JDOQLTypedQuery<T> orderBy(OrderExpression<?>... orderExprs)

      Method to set the ordering of the query.
      Parameters:
        `orderExprs` - Ordering expression(s)
      Returns:
        The query

    - #### result

          JDOQLTypedQuery<T> result(boolean distinct,
                                    Expression<?>... exprs)

      Method to set the result of the query.
      Parameters:
        `distinct` - Whether results are distinct
        `exprs` - The result expressions
      Returns:
        The query

    - #### range

          JDOQLTypedQuery<T> range(NumericExpression<?> lowerInclExpr,
                                   NumericExpression<?> upperExclExpr)

      Method to set the range of any required results, using expressions.
      Parameters:
        `lowerInclExpr` - The position of the first result (inclusive)
        `upperExclExpr` - The position of the last result (exclusive)
      Returns:
        The query

    - #### range

          JDOQLTypedQuery<T> range(long lowerIncl,
                                   long upperExcl)

      Method to set the range of any required results, using long values.
      Parameters:
        `lowerIncl` - The position of the first result (inclusive)
        `upperExcl` - The position of the last result (exclusive)
      Returns:
        The query

    - #### range

          JDOQLTypedQuery<T> range(Expression<?> paramLowerInclExpr,
                                   Expression<?> paramUpperExclExpr)

      Method to set the range of any required results, using parameters (expressions).
      Parameters:
        `paramLowerInclExpr` - Expression for a parameter defining the position of the first result (inclusive)
        `paramUpperExclExpr` - Expression for a parameter defining the position of the last result (exclusive)
      Returns:
        The query

    - #### subquery

          JDOQLTypedSubquery<T> subquery(String candidateAlias)

      Method to return a subquery for use in this query using the same candidate class as this query. To obtain the expression for the subquery to link it back to this query, call "result(...)" on the subquery.
      Parameters:
        `candidateAlias` - Alias for the candidate
      Returns:
        The subquery

    - #### subquery

          <S> JDOQLTypedSubquery<S> subquery(Class<S> candidate,
                                             String candidateAlias)

      Method to return a subquery for use in this query. To obtain the expression for the subquery to link it back to this query, call "result(...)" on the subquery.
      Type Parameters:
        `S` - Candidate type for subquery
      Parameters:
        `candidate` - Candidate for the subquery
        `candidateAlias` - Alias for the candidate
      Returns:
        The subquery

    - #### subquery

          <E> JDOQLTypedSubquery<E> subquery(CollectionExpression<Collection<E>,E> candidateCollection,
                                             Class<E> candidate,
                                             String candidateAlias)

      Method to return a correlated subquery for use in this query. The candidate collection of the subquery is defined using a collection relationship of the outer query. To obtain the expression for the subquery to link it back to this query, call "result(...)" on the subquery.
      Type Parameters:
        `E` - Candidate type for subquery
      Parameters:
        `candidateCollection` - Expression defining the candidate collection for the subquery
        `candidate` - Candidate for the subquery
        `candidateAlias` - Alias for the candidate
      Returns:
        The subquery

    - #### setParameters

          JDOQLTypedQuery<T> setParameters(Map<String,?> namedParamMap)

      Method to set the named parameters on this query prior to execution. All parameter values specified in this method will only be retained until the subsequent query execution.
      Parameters:
        `namedParamMap` - The map of parameter values keyed by their names.
      Returns:
        This query

    - #### setParameter

          JDOQLTypedQuery<T> setParameter(Expression<?> paramExpr,
                                          Object value)

      Method to set a parameter value for the specified (parameter) expression when executing the query. All parameter values specified in this method will only be retained until the subsequent query execution.
      Parameters:
        `paramExpr` - Expression defining the parameter
        `value` - The value
      Returns:
        The query

    - #### setParameter

          JDOQLTypedQuery<T> setParameter(String paramName,
                                          Object value)

      Method to set the value for a named parameter for use when executing the query. All parameter values specified in this method will only be retained until the subsequent query execution.
      Parameters:
        `paramName` - Parameter name
        `value` - The value
      Returns:
        The query

    - #### executeList

          List<T> executeList()

      Method to execute the query where there are (potentially) multiple rows and we are returning the candidate type. Any parameters required should be set prior to calling this method, using one of the setParameter methods.

      Calling this method with a result being specified will result in JDOUserException being thrown.

      Returns:
        The results

    - #### executeUnique

          T executeUnique()

      Method to execute the query where there is a single row and we are returning the candidate type. Any parameters required should be set prior to calling this method, using one of the setParameter methods.

      Calling this method with a result being specified will result in JDOUserException being thrown.

      Returns:
        The result

    - #### executeResultList

          <R> List<R> executeResultList(Class<R> resultCls)

      Method to execute the query where there are (potentially) multiple rows and we are returning either the result type. Any parameters required should be set prior to calling this method, using one of the setParameters methods.

      Calling this method with no result being specified will result in JDOUserException being thrown.

      Type Parameters:
        `R` - result type
      Parameters:
        `resultCls` - Result class
      Returns:
        The results

    - #### executeResultUnique

          <R> R executeResultUnique(Class<R> resultCls)

      Method to execute the query where there is a single row and we are returning either the result type. Any parameters required should be set prior to calling this method, using one of the setParameter methods.

      Calling this method with no result being specified will result in JDOUserException being thrown.

      Type Parameters:
        `R` - result type
      Parameters:
        `resultCls` - Result class
      Returns:
        The result

    - #### executeResultList

          List<Object> executeResultList()

      Method to execute the query where there are (potentially) multiple rows and we have a result defined but no result class. Any parameters required should be set prior to calling this method, using one of the setParameter methods.

      Calling this method with no result being specified will result in JDOUserException being thrown.

      Returns:
        The results

    - #### executeResultUnique

          Object executeResultUnique()

      Method to execute the query where there is a single row and we have a result defined but no result class. Any parameters required should be set prior to calling this method, using one of the setParameters methods.

      Calling this method with no result being specified will result in JDOUserException being thrown.

      Returns:
        The results

    - #### deletePersistentAll

          long deletePersistentAll()

      Method to execute the query deleting the affected instances. Any parameters required should be set prior to calling this method, using one of the setParameter methods.
      Returns:
        The number of objects deleted

    - #### getDatastoreReadTimeoutMillis

          Integer getDatastoreReadTimeoutMillis()

      Get the effective timeout setting for read operations. If the timeout has not been set on this query explicitly, the effective datastore read timeout value from the persistence manager is returned.
      Returns:
        the effective timeout setting (milliseconds).
      See Also:
        `PersistenceManager.setDatastoreReadTimeoutMillis(Integer)`

    - #### datastoreReadTimeoutMillis

          JDOQLTypedQuery<T> datastoreReadTimeoutMillis(Integer interval)

      Set the datastore read timeout (millis).
      Parameters:
        `interval` - The interval
      Returns:
        This query

    - #### getDatastoreWriteTimeoutMillis

          Integer getDatastoreWriteTimeoutMillis()

      Get the effective timeout setting for write operations. If the timeout has not been set on this query explicitly, the effective datastore write timeout value from the persistence manager is returned.
      Returns:
        the effective timeout setting (milliseconds).
      See Also:
        `PersistenceManager.setDatastoreWriteTimeoutMillis(Integer)`

    - #### datastoreWriteTimeoutMillis

          JDOQLTypedQuery<T> datastoreWriteTimeoutMillis(Integer interval)

      Set the datastore write timeout (millis).
      Parameters:
        `interval` - The interval
      Returns:
        This query

    - #### getSerializeRead

          Boolean getSerializeRead()

      Return the current value of the serializeRead property.
      Returns:
        the value of the serializeRead property

    - #### serializeRead

          JDOQLTypedQuery<T> serializeRead(Boolean serialize)

      Set whether we to lock all objects read by this query.
      Parameters:
        `serialize` - Whether to lock
      Returns:
        This query

    - #### isUnmodifiable

          boolean isUnmodifiable()

      The unmodifiable flag, when set, disallows further modification of the query, except for specifying the range, result class, and ignoreCache option.
      Returns:
        the current setting of the flag

    - #### unmodifiable

          JDOQLTypedQuery<T> unmodifiable()

      Set to make this query unmodifiable hereafter.
      Returns:
        This query

    - #### getIgnoreCache

          boolean getIgnoreCache()

      Get the ignoreCache option setting.
      Returns:
        the ignoreCache option setting.

    - #### ignoreCache

          JDOQLTypedQuery<T> ignoreCache(boolean flag)

      Set whether we to ignore the cache with this query.
      Parameters:
        `flag` - Whether to ignore the cache
      Returns:
        This query

    - #### extension

          JDOQLTypedQuery<T> extension(String key,
                                       Object value)

      Specify an extension for this query.
      Parameters:
        `key` - The extension key
        `value` - The extension value
      Returns:
        This query

    - #### extensions

          JDOQLTypedQuery<T> extensions(Map values)

      Specify a map of extensions for this query.
      Parameters:
        `values` - The extension map of keys and values
      Returns:
        This query

    - #### saveAsNamedQuery

          JDOQLTypedQuery<T> saveAsNamedQuery(String name)

      Save the query, as it is currently defined, as a named query under the specified name. If a named query already exists under this name (either defined in metadata, or previously saved) then it will be overwritten.
      Parameters:
        `name` - Name to save it under.
      Returns:
        This query

    - #### getPersistenceManager

          PersistenceManager getPersistenceManager()

      Accessor for the PersistenceManager for this query
      Returns:
        The PersistenceManager

    - #### getFetchPlan

          FetchPlan getFetchPlan()

      Accessor for the FetchPlan for this query
      Returns:
        The FetchPlan

    - #### cancelAll

          void cancelAll()

      Method to cancel any executing queries. If the underlying datastore doesn't support cancellation of queries this will throw JDOUnsupportedOptionException. If the cancellation fails (e.g in the underlying datastore) then this will throw a JDOException.

    - #### cancel

          void cancel(Thread thread)

      Method to cancel an executing query in the specified thread. If the underlying datastore doesn't support cancellation of queries this will throw JDOUnsupportedOptionException. If the cancellation fails (e.g in the underlying datastore) then this will throw a JDOException.
      Parameters:
        `thread` - The thread to cancel

    - #### close

          void close(Object result)

      Method to close the specified query result.
      Parameters:
        `result` - The result

    - #### closeAll

          void closeAll()

      Method to close all query results from this query.

    - #### toString

          String toString()

      Method to return the equivalent String form of this query (if applicable for the query language).
      Overrides:
        `toString` in class `Object`
      Returns:
        The single-string form of this query

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