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Query Parameters in JPA

Query parameters enable the definition of reusable queries. Such queries can be executed with different parameter values to retrieve different results. Running the same query multiple times with different parameter values (arguments) is more efficient than using a new query string for every query

Entity object parameter in Explorer parameter

Hello, I cannot set an entity object in a parameter for a bulk update in the explorer query execution. The format Entity#001 works well for the parameter in the WHERE clause, but it doesn't work in ...   Parameters :  a:    Status#10002 b:    Status#10003 That query

InterfaceRef jakarta.persistence.Parameter

JPA Interface Parameter Type Parameters : - the type of the parameter Type for query parameter ... how to use Parameter . Public Methods String getName () Return the parameter name, or null if the parameter is not a named parameter or no name has been assigned. Return: parameter name Since: JPA 2.0

Object as parameter results in exception

parameters . Maybe EclipseLink defines an implicit parameter to resolve this query, and maybe this is what ObjectDB should do. Using a parameter is also recommended for the primary key. In the current form ... with parameters automatically, whenever possible. Currently, to solve the problem and improve

CriteriaBuilder.parameter(paramClass,name) - JPA Method

JPA Method in jakarta.persistence.criteria.CriteriaBuilder ParameterExpression parameter (   Class  paramClass,    String name ) Create a parameter expression with the given name. Parameters : paramClass - parameter class name - name that can be used to refer to the parameter Return: parameter expression Since: JPA 2.0

Parameter.getParameterType() - JPA Method

JPA Method in jakarta.persistence. Parameter Class getParameterType () Return the Java type of the parameter . Values bound to the parameter must be assignable to this type. This method is required ... of the parameter Throws: IllegalStateException - if invoked on a parameter obtained from a query language query or

Parameter.getName() - JPA Method

JPA Method in jakarta.persistence. Parameter String getName () Return the parameter name, or null if the parameter is not a named parameter or no name has been assigned. Return: parameter name Since: JPA 2.0

Parameter.getPosition() - JPA Method

JPA Method in jakarta.persistence. Parameter Integer getPosition () Return the parameter position, or null if the parameter is not a positional parameter . Return: position of parameter Since: JPA 2.0

CriteriaBuilder.parameter(paramClass) - JPA Method

JPA Method in jakarta.persistence.criteria.CriteriaBuilder ParameterExpression parameter (   Class  paramClass ) Create a parameter expression. Parameters : paramClass - parameter class Return: parameter expression Since: JPA 2.0

AnnotationAttrRef jakarta.persistence.NamedStoredProcedureQuery.parameters

JPA Annotation Attribute in jakarta.persistence.NamedStoredProcedureQuery StoredProcedureParameter [] parameters default {} Information about all parameters of the stored procedure. Parameters must be specified in the order in which they occur in the parameter list of the stored procedure. Since: JPA 2.1

Navigation and Parameters

Greetings ObjectDB team, Suppose I pass a List of persistent objects to some query as a parameter , can I navigate to those objects' fields ? E.g.: SELECT x FROM ClassX x WHERE x ... . So if the parameter y is a collection the expression y.b is invalid. support Support

Query over the keySet of a map field with collection parameter

It is possible to execute a query over a keySet of a map field with comparing to a collection parameter ? Set values = new HashSet (); values.add("c2"); String query = // "SELECT e " + "FROM ... with a parameter which is a collection of strings. SELECT e FROM EntityParent e JOIN e . map key

JPA Criteria API Queries

which the query is built. Parameters in Criteria Queries The following query string represents a JPQL query with a parameter : SELECT c FROM Country c WHERE c.population :p An equivalent query can be built using ... . parameter (Integer.class); q. select (c). where (cb. gt (c. get ("population"), p

Collections in JPQL and Criteria Queries

Collections may appear in JPQL queries: as parameters - when collections are assigned as arguments ... that is passed to the query as a parameter . For example: 'English' IN :languages is TRUE if the argument for the languages   parameter  is a collection that contains 'English' and FALSE if not

Database Connection using JPA

of the createEntityManagerFactory method takes a map of persistence unit properties as a second parameter : Map properties ... , relative to the server data root path. Connection URL Parameters The following parameters ... above). To obtain a connection to an empty database (discarding existing content if any) the drop parameter

Strings in JPQL and Criteria Queries

' , ''. as parameters - when string values are assigned as arguments. as  path expressions - in ... (usually a parameter or literal). For example: c.name LIKE '_r%' is TRUE for 'Brazil' and FALSE ... , as shown in the following examples: // Create path and parameter expressions: Expression path

Numbers in JPQL and Criteria Queries

, -12.5 . as parameters - when numeric values are assigned as arguments. as  path expressions - in ... Java numeric object: // Create path and parameter expressions: Expression path = country. get ("population"); Expression param = cb. parameter (Integer.class); // Addition (+) Expression sum1 = cb. sum

Literals in JPQL and Criteria Queries

). JPQL literals should be used sparingly as queries that use parameters instead of literals ... parameter values. Literals should only be embedded in JPQL queries when a single constant value

Online Backup

directory can be specified by setting the target parameter before executing the backup query:   ... is specified as a value for the target parameter it represents a path relative to the ObjectDB home

Paths and Types in JPQL and Criteria API

identification variables and SELECT result variables. Parameters - when instances of these classes ... with an instance of a user defined class (represented by a variable, parameter or prefix path

Database Explorer

: Enter a query string. In the [ Parameters ] table provide arguments for parameters (if any

InterfaceRef jakarta.persistence.criteria.CriteriaBuilder

( Expression  x) Create an expression that returns the absolute value of its argument. Parameters : x ... an all expression over the subquery results. Parameters : subquery - subquery Return: all expression ... of the given boolean expressions. Parameters : x - boolean expression y - boolean expression Return

date parameter not working (probably) in explorer

.classIdentifier = '(PR)' and o.created ?1 we try to set the parameter (its a java.util.Date) in the parameters table. None of the following works: 2020-12-01 2020.12.01 {d '2020-12-01'} the parameter ... '. A workaround for previous versions is to use a date literal (embedded in the query) instead of a date parameter . support Support

Bug when using SIZE in combination with date lower parameter

cannot be both before and after the date parameter . support Support Hello, to archieve the results the date parameter used in both queries is obviously not the same. For the first query it is 1 year in the future

Large query parameter - out of memory

. In your test the request is very large (the query parameter arguments) and the response ... with their huge query parameter arguments. Build 2.3.3_06 fixes this issue. Thank you for this report and for the test program. support Support

Exception on comparing array fields against parameters in queries

Exception on comparing array fields against parameters in queries

InterfaceRef jakarta.persistence.StoredProcedureQuery

with the following: The setParameter methods are used to set the values of all required IN and INOUT parameters . It is not required to set the values of stored procedure parameters for which default values ... both the simple case where scalar results are passed back only via INOUT and OUT parameters as well as

Database Management Settings

of these temporary databases is deleted when using the drop URL connection parameter . The elements

Date and Time in JPQL and Criteria Queries

Date and time expressions may appear in JPQL queries: as date and time literals - e.g. {d '2011-12-31'} , {t '23:59:59'} . as parameters - when date and time values are assigned as arguments. as  path expressions - in navigation to persistent date and time fields. as results of predefined

JPA Query Expressions (JPQL / Criteria)

/ Criteria Variables JPQL / Criteria Parameters JPQL / Criteria Literals Every query expression consists

JPA Named Queries

A named query is a statically defined query with a predefined unchangeable query string. Using named queries instead of dynamic queries may improve code organization by separating the JPQL query strings from the Java code. It also enforces the use of query  parameters

WHERE clause (JPQL / Criteria API)

); Root c = q. from (Country.class); q. select (c); ParameterExpression p = cb. parameter (Integer

Comparison in JPQL and Criteria API

. The two following expressions are equivalent ( :min and :max are query parameters ): x BETWEEN :min AND :max x

ObjectDB Object Database Features

parameters for efficient reuse of one query in multiple executions. Result range settings (first

InterfaceRef jakarta.persistence.TypedQuery

JPA Interface TypedQuery Type Parameters : - query result type Super Interfaces: Query Interface used to control the execution of typed queries. See Also: Query Parameter Since: JPA 2.0 Chapter 4 ... of results Inherited from: Query Since: JPA 2.0 Parameter getParameter (String name) Get the parameter

InterfaceRef jakarta.persistence.Query

StoredProcedureQuery Parameter Since: JPA 1.0 Chapter 4 - JPA Queries (JPQL / Criteria) explains how to use Query ... .0 Parameter getParameter (String name) Get the parameter object corresponding to the declared parameter of the given name. This method is not required to be supported for native queries

InterfaceRef jakarta.persistence.EntityManager

for rollback. Parameters : function - the function - the connection type, usually {@code java.sql ... entity instance belonging to the current persistence context. Parameters : entity - entity instance ... ) Create a new mutable EntityGraph , allowing dynamic definition of an entity graph. Parameters : rootType

InterfaceRef jakarta.persistence.criteria.From

JPA Interface From Type Parameters : - the source type - the target type Super Interfaces ... ) Create a fetch join to the specified collection-valued attribute using an inner join. Parameters ... to the specified collection-valued attribute using the given join type. Parameters : attribute - target

InterfaceRef jakarta.persistence.criteria.ParameterExpression

JPA Interface ParameterExpression Type Parameters : - the type of the parameter expression Super Interfaces: Expression , Parameter , Selection , TupleElement Type of criteria query parameter ... : the runtime type is not changed. Warning: may result in a runtime failure. Parameters : type

InterfaceRef jakarta.persistence.criteria.Subquery

JPA Interface Subquery Type Parameters : - the type of the selection item. Super Interfaces ... : the runtime type is not changed. Warning: may result in a runtime failure. Parameters : type - intended ... . Parameters : type - a basic type Return: a scalar expression of the given basic type Inherited from

InterfaceRef jakarta.persistence.metamodel.IdentifiableType

JPA Interface IdentifiableType Type Parameters : - The represented entity or mapped superclass type ... ) Return the attribute of the managed type that corresponds to the specified name. Parameters : name ... to the specified name. Parameters : name - the name of the represented attribute Return: CollectionAttribute

InterfaceRef jakarta.persistence.criteria.Join

JPA Interface Join Type Parameters : - the source type of the join - the target type of the join ... join to the given entity. Parameters : entityClass - the target entity class Return: the resulting ... ;joinType) Create and add a join to the given entity. Parameters : entityClass - the target entity class

InterfaceRef jakarta.persistence.EntityGraph

JPA Interface EntityGraph Type Parameters : - The type of the root entity. Super Interfaces: Graph ... attribute, or add a new attribute node if there is no existing node. Parameters : attribute - attribute ... if there is no existing node. Parameters : attributeName - name of the attribute Return: the attribute

InterfaceRef jakarta.persistence.metamodel.EmbeddableType

JPA Interface EmbeddableType Type Parameters : - The represented embeddable type. Super Interfaces ... that corresponds to the specified name. Parameters : name - the name of the represented attribute Return ... attribute of the managed type that corresponds to the specified name. Parameters : name - the name

InterfaceRef jakarta.persistence.Subgraph

JPA Interface Subgraph Type Parameters : - The type of the attribute. Super Interfaces: Graph ... if there is no existing node. Parameters : attribute - attribute Return: the attribute node Throws ... with the given name, or add a new attribute node if there is no existing node. Parameters

InterfaceRef jakarta.persistence.metamodel.ManagedType

JPA Interface ManagedType Type Parameters : - The represented type. Super Interfaces: Type ... that corresponds to the specified name. Parameters : name - the name of the represented attribute ... to the specified name. Parameters : name - the name of the represented attribute Return: CollectionAttribute

InterfaceRef jakarta.persistence.Graph

if there is no existing node. Parameters : attribute - attribute Return: the attribute node Throws ... add a new attribute node if there is no existing node. Parameters : attributeName - name ... argument is ignored and has no effect. Parameters : attribute - attribute Throws

InterfaceRef jakarta.persistence.criteria.AbstractQuery

JPA Interface AbstractQuery Type Parameters : - the type of the result Super Interfaces ... results must be retained. Parameters : distinct - boolean value specifying whether duplicate results ... to the given entity, forming a cartesian product with any existing roots. Parameters : entityClass - the entity

InterfaceRef jakarta.persistence.criteria.CriteriaUpdate

JPA Interface CriteriaUpdate Type Parameters : - the entity type that is the target of the update ... , the entity that is being updated. Parameters : entityClass - the entity class Return: query root corresponding ... root, the entity that is being updated. Parameters : entity - metamodel entity representing

Step 4: Create an ObjectDB Data Set

successfully - a new window appears. In the Parameters list specify default values for low   ( 11