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String values may appear in JPQL queries in various forms: as  string literals - e.g. 'abc' , ''. as parameters - when string values are assigned as arguments. as  path expressions - in navigation to persistent string fields. as results of predefined JPQL string manipulation functions

replace (    Expression x ,    String substring ,    String replacement ) Create an expression replacing every occurrence of a substring within a string . Parameters: x - string expression replacement - the replacement string substring - the literal substring to replace

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager Query createNativeQuery (    String sqlString ,    String resultSetMapping ) Create an instance of Query ... sqlString - a native SQL query string Returns: the new query instance. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager StoredProcedureQuery createStoredProcedureQuery (    String procedureName ,    String ... resultSetMappings ) Create an instance of StoredProcedureQuery for executing a stored procedure in the database

(    Expression x ,    String pattern ,    int from ) Create expression to locate the position of one string within another, returning position of first character if found. The first position in a string is denoted by 1. If the string to be located is not found, 0

(    Expression x ,    String pattern ) Create expression to locate the position of one string within another, returning position of first character if found. The first position in a string is denoted by 1. If the string to be located is not found, 0 is returned. Warning

replace (    Expression x ,    String substring ,    Expression replacement ) Create an expression replacing every occurrence of a substring within a string . Parameters: x - string expression replacement - the replacement string substring - the literal substring to replace

replace (    Expression x ,    Expression substring ,    String replacement ) Create an expression replacing every occurrence of a substring within a string . Parameters: x - string expression replacement - the replacement string substring - the literal substring to replace

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder Expression concat (    Expression x ,    String y ) Create an expression for string concatenation. Parameters: x - string expression y - string Returns: expression corresponding to concatenation. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder Expression concat (    String x ,    Expression y ) Create an expression for string concatenation. Parameters: x - string y - string expression Returns: expression corresponding to concatenation. Since: Jakarta Persistence (JPA) 1.0

;  String qlString ) Create an instance of Query for executing a Jakarta Persistence query language statement. Parameters: qlString - a Jakarta Persistence query string Returns: the new query instance. Throws: IllegalArgumentException - if the query string is found to be invalid. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder Predicate notLike (    Expression x ,    String pattern ,    Expression escapeChar ... : x - string expression pattern - string escapeChar - escape character expression Returns: not-like predicate. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder Predicate notLike (    Expression x ,    String pattern ,    char escapeChar ) Create ... - string expression pattern - string escapeChar - escape character Returns: not-like predicate. Since: Jakarta Persistence (JPA) 1.0

(    Expression x ,    String pattern ,    Expression escapeChar ) Create a predicate for testing whether the expression satisfies the given pattern. Parameters: x - string expression pattern - string escapeChar - escape character expression Returns: like predicate. Since: Jakarta Persistence (JPA) 1.0

(    Expression x ,    String pattern ,    char escapeChar ) Create a predicate for testing whether the expression satisfies the given pattern. Parameters: x - string expression pattern - string escapeChar - escape character Returns: like predicate. Since: Jakarta Persistence (JPA) 1.0

(    Expression x ,    String pattern ) Create a predicate for testing whether the expression does not satisfy the given pattern. Parameters: x - string expression pattern - string Returns: not-like predicate. Since: Jakarta Persistence (JPA) 1.0

(    String qlString ,    Class resultClass ) Create an instance of TypedQuery ... . Parameters: qlString - a Jakarta Persistence query string resultClass - the type of the query result Returns: the new query instance. Throws: IllegalArgumentException - if the query string is found

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder Predicate like (    Expression x ,    String pattern ) Create a predicate for testing whether the expression satisfies the given pattern. Parameters: x - string expression pattern - string Returns: like predicate. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.EnumType STRING Persist enumerated type property or field as a string . The string value of an enum instance with no EnumeratedValue field is the value of its Enum.java.lang.Enum/name() member. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.Path Path get (    String attributeName ) Create a path corresponding to the referenced attribute. Note: Applications using the string -based API may need to specify the type resulting from the Path.get operation in order

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.DiscriminatorType STRING String as the discriminator type. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager Query createNativeQuery (    String sqlString ) Create an instance of Query for executing a native SQL statement, e.g ... - a native SQL query string Returns: the new query instance. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager Query createNativeQuery (    String sqlString ,    Class resultClass ) Create an instance of Query ... to TypedQuery . Parameters: sqlString - a native SQL query string resultClass - the type

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager Query createNamedQuery (    String name ) Create an instance of Query for executing a named query written in ... been defined with the given name or if the query string is found to be invalid. See Also: NamedQuery NamedNativeQuery Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager TypedQuery createNamedQuery (    String name ,    Class resultClass ) Create an instance of TypedQuery ... with the given name or if the query string is found to be invalid or if the query result is found

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceConfiguration PersistenceConfiguration property (    String name ,    Object value ) Set a property of this persistence unit. Parameters: name - the property name value - the property value Returns: this configuration. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType SingularAttribute getSingularAttribute (    String name ) Return the single-valued attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType SingularAttribute getDeclaredSingularAttribute (    String name ) Return the single-valued attribute declared by the managed type that corresponds to the specified name. Parameters: name - the name

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType CollectionAttribute getCollection (    String name ) Return the Collection-valued attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType CollectionAttribute getDeclaredCollection (    String name ) Return the Collection-valued attribute declared by the managed type that corresponds to the specified name. Parameters: name - the name

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceUnitUtil void load (    Object entity ,    String attributeName ) Load the persistent value of a given persistent attribute of an entity belonging to the persistence unit and to an open persistence context

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType Attribute getAttribute (    String name ) Return the attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns: attribute with given

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType Attribute getDeclaredAttribute (    String name ) Return the attribute declared by the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType MapAttribute getMap (    String name ) Return the Map-valued attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns: MapAttribute

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType MapAttribute getDeclaredMap (    String name ) Return the Map-valued attribute declared by the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceUnitUtil boolean isLoaded (    Object entity ,    String attributeName ) Determine the load state of a given persistent attribute of an entity belonging to the persistence unit. Parameters: attributeName - name

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType SetAttribute getSet (    String name ) Return the Set-valued attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns: SetAttribute

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType SetAttribute getDeclaredSet (    String name ) Return the Set-valued attribute declared by the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType ListAttribute getList (    String name ) Return the List-valued attribute of the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute Returns

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType ListAttribute getDeclaredList (    String name ) Return the List-valued attribute declared by the managed type that corresponds to the specified name. Parameters: name - the name of the represented attribute

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Metamodel EntityType entity (    String entityName ) Return the metamodel entity type representing the entity. Parameters: entityName - the name of the represented entity Returns: the metamodel entity type. Throws

Jakarta Persistence (JPA) Method in jakarta.persistence.TypedQuery TypedQuery setParameter (    String name ,    Object value ) Bind an argument value to a named parameter. Parameters: name - parameter name value - parameter value Returns: the same query instance. Throws

Jakarta Persistence (JPA) Method in jakarta.persistence.TypedQuery TypedQuery setParameter (    String name ,    Calendar value ,    TemporalType temporalType ) Bind an instance of Calendar to a named parameter. Parameters: name - parameter name temporalType

Jakarta Persistence (JPA) Method in jakarta.persistence.TypedQuery TypedQuery setParameter (    String name ,    Date value ,    TemporalType temporalType ) Bind an instance of Date to a named parameter. Parameters: name - parameter name temporalType - temporal type

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType SingularAttribute getSingularAttribute (    String name ,    Class type ) Return the single-valued attribute of the managed type that corresponds to the specified name and Java type. Parameters: name

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType SingularAttribute getDeclaredSingularAttribute (    String name ,    Class type ) Return the single-valued attribute declared by the managed type that corresponds to the specified name and Java type

Jakarta Persistence (JPA) Method in jakarta.persistence.TypedQuery TypedQuery setHint (    String hintName ,    Object value ) Set a query property or hint. The hints elements may be used to specify query properties and hints. Properties defined by this specification

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType ListAttribute getList (    String name ,    Class elementType ) Return the List-valued attribute of the managed type that corresponds to the specified name and Java element type. Parameters: name

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType ListAttribute getDeclaredList (    String name ,    Class elementType ) Return the List-valued attribute declared by the managed type that corresponds to the specified name and Java element type

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType MapAttribute getMap (    String name ,    Class keyType ,    Class valueType ) Return the Map-valued attribute of the managed type that corresponds to the specified name and Java key