birt barcode tool C.2.4 Defining domain relationships in Java

Make ECC200 in Java C.2.4 Defining domain relationships

C.2.4 Defining domain relationships
Draw Data Matrix In Java
Using Barcode generator for Java Control to generate, create DataMatrix image in Java applications.
www.OnBarcode.com
ECC200 Recognizer In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
These annotations are used to define one-to-one, one-to-many and many-tomany relationships between entities. javax.persistence.OneToOne Specifies a one-to-one entity association.
Linear Barcode Generation In Java
Using Barcode generator for Java Control to generate, create 1D Barcode image in Java applications.
www.OnBarcode.com
Encoding UCC-128 In Java
Using Barcode generation for Java Control to generate, create UCC - 12 image in Java applications.
www.OnBarcode.com
@Target({METHOD, FIELD}) @Retention(RUNTIME) Entity class if not public @interface OneToOne { Java generics Class targetEntity() default void.class; CascadeType[] cascade() default {}; FetchType fetch() default EAGER; Relationship boolean optional() default true; owner String mappedBy() default ""; } public enum CascadeType { ALL, PERSIST, MERGE, REMOVE, REFRESH }; public enum FetchType { LAZY, EAGER };
Making QR Code In Java
Using Barcode creation for Java Control to generate, create Denso QR Bar Code image in Java applications.
www.OnBarcode.com
UPC - 13 Maker In Java
Using Barcode generation for Java Control to generate, create EAN13 image in Java applications.
www.OnBarcode.com
javax.persistence.ManyToOne Specifies a many-to-one entity association.
Printing Barcode In Java
Using Barcode creator for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
Identcode Generation In Java
Using Barcode generation for Java Control to generate, create Identcode image in Java applications.
www.OnBarcode.com
@Target({METHOD, FIELD}) @Retention(RUNTIME) public @interface ManyToOne { Class targetEntity() default void.class; CascadeType[] cascade() default {};
Printing Data Matrix ECC200 In None
Using Barcode encoder for Office Excel Control to generate, create DataMatrix image in Microsoft Excel applications.
www.OnBarcode.com
Making Data Matrix In Visual C#.NET
Using Barcode maker for VS .NET Control to generate, create Data Matrix 2d barcode image in .NET applications.
www.OnBarcode.com
Entity class if not Java generic
Barcode Encoder In Visual Studio .NET
Using Barcode generation for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
Draw GTIN - 128 In C#
Using Barcode generator for VS .NET Control to generate, create EAN 128 image in Visual Studio .NET applications.
www.OnBarcode.com
APPENDIX C
UPC-A Drawer In Objective-C
Using Barcode maker for iPhone Control to generate, create UPCA image in iPhone applications.
www.OnBarcode.com
Making PDF417 In None
Using Barcode printer for Online Control to generate, create PDF-417 2d barcode image in Online applications.
www.OnBarcode.com
Annotations reference
UCC-128 Printer In None
Using Barcode creator for Office Word Control to generate, create GS1 128 image in Microsoft Word applications.
www.OnBarcode.com
Barcode Drawer In Visual Studio .NET
Using Barcode generation for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
FetchType fetch() default EAGER; boolean optional() default true; }
ANSI/AIM Code 39 Creator In None
Using Barcode drawer for Word Control to generate, create Code 39 Extended image in Office Word applications.
www.OnBarcode.com
Draw GS1 - 13 In Java
Using Barcode maker for BIRT Control to generate, create UPC - 13 image in BIRT applications.
www.OnBarcode.com
javax.persistence.OneToMany Specifies a one-to-many entity association.
Encoding Data Matrix 2d Barcode In None
Using Barcode creation for Font Control to generate, create Data Matrix image in Font applications.
www.OnBarcode.com
Barcode Printer In C#
Using Barcode maker for VS .NET Control to generate, create Barcode image in .NET applications.
www.OnBarcode.com
@Target({METHOD, FIELD}) @Retention(RUNTIME) Entity class if not public @interface OneToMany { Java generic Class targetEntity() default void.class; CascadeType[] cascade() default {}; FetchType fetch() default LAZY; Relationship owner String mappedBy() default ""; }
javax.persistence.ManyToMany Denotes a many-to-many association with another entity.
@Target({METHOD, FIELD}) @Retention(RUNTIME) Entity class if not public @interface ManyToMany { Java generic Class targetEntity() default void.class; CascadeType[] cascade() default {}; FetchType fetch() default LAZY; Relationship owner String mappedBy() default ""; }
C.2.5 Mapping domain relationships
These annotations are used to map entity relations to the database. javax.persistence.JoinColumn Denotes a mapping column for an entity association.
@Target({METHOD, FIELD}) @Retention(RUNTIME) public @interface JoinColumn { String name() default ""; String referencedColumnName() default ""; boolean unique() default false; boolean nullable() default true; boolean insertable() default true; boolean updatable() default true; String columnDefinition() default ""; String table() default ""; }
Column DDL
javax.persistence.JoinColumns Denotes a mapping column for an entity association when a composite key is used.
@Target({METHOD, FIELD}) @Retention(RUNTIME) public @interface JoinColumns {
Java Persistence API annotations
JoinColumn[] value(); }
javax.persistence.PrimaryKeyJoinColumn Denotes the primary key column that is used as a foreign key to join to another table. It is used in one-to-one relationships and the joined subclass inheritance strategy.
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME) public @interface PrimaryKeyJoinColumn { Key in current table String name() default ""; String referencedColumnName() default ""; String columnDefinition() default ""; Column DDL }
Key in joined table
javax.persistence.PrimaryKeyJoinColumns Specifies composite primary keys used as foreign key to join to another table.
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME) public @interface PrimaryKeyJoinColumns { PrimaryKeyJoinColumn[] value(); }
javax.persistence.JoinTable Specifies a join table used in a one-to-many or many-to-many association.
@Target({METHOD, FIELD}) @Retention(RUNTIME) public @interface JoinTable { String name() default ""; Table catalog String catalog default ""; Join column(s) in String schema default ""; Table schema owning side JoinColumn[] joinColumns default {}; JoinColumn[] inverseJoinColumns default {}; Join column(s) in UniqueConstraint[] uniqueConstraints default {}; inverse side }
javax.persistence.AssociationOverride Overrides a many-to-one or one-to-one mapping of property or field for an entity relationship.
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME) public @interface AssociationOverride { String name default ""; JoinColumn[] joinColumns default {}; }
APPENDIX C
Annotations reference
javax.persistence.AssociationOverrides Overrides mappings of multiple many-to-one or one-to-one relationship properties or fields.
@Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME) public @interface AssociationOverrides { AssociationOverride[] value(); }
javax.persistence.OrderBy Specifies ordering of a collection-valued association such as one-to-many and many-to-many when it is retrieved.
@Target({METHOD, FIELD}) @Retention(RUNTIME) public @interface OrderBy { String value() default ""; }
javax.persistence.MapKey Specifies the mapping keys for an entity association of type java.util.Map. This annotation is not discussed in this book. We encourage you to explore it on your own.
@Target({METHOD, FIELD}) @Retention(RUNTIME) public @interface MapKey { String name() default ""; }
C.2.6 Mapping object-oriented inheritance
The following annotations are used to map OO inheritance to relational database tables. javax.persistence.Inheritance Defines the inheritance mapping strategy for entities in the entity hierarchy.
@Target({TYPE}) @Retention(RUNTIME) public @interface Inheritance { InheritanceType strategy() default SINGLE_TABLE; } public enum InheritanceType { SINGLE_TABLE, JOINED, TABLE_PER_CLASS };
javax.persistence.DiscriminatorColumn Defines the discriminator column used when the single-table or joined inheritance strategy is used.
Java Persistence API annotations
@Target({TYPE}) @Retention(RUNTIME) public @interface DiscriminatorColumn { String name() default "DTYPE"; DiscriminatorType discriminatorType() default STRING; String columnDefinition() default ""; Column DDL int length() default 31; } public enum DiscriminatorType { STRING, CHAR, INTEGER };
javax.persistence.DiscriminatorValue Specifies the value for a discriminator column for storing the entity type when the single-table or joined inheritance strategy is used.
@Target({TYPE}) @Retention(RUNTIME) public @interface DiscriminatorValue { String value(); }
Copyright © OnBarcode.com . All rights reserved.