ijgen.generator.annotations
Annotation Type Relation

@Target(value=FIELD)
@Retention(value=RUNTIME)
public @interface Relation

Annotation which describes relation between classes. Applicable only for fiels. Its goal is to carry information about foreign key based relations. One to one, One to many, Many to one, Many to many are the relation types that are currently supported. Set of attributes: 1. relationType: Specifies the type of the relation for this field. Attribute is mandatory! Possible types are: RelationType.ONE_TO_ONE RelationType.ONE_TO_MANY RelationType.MANY_TO_ONE RelationType.MANY_TO_MANY 2. joinTable: specifies the table that contains the data for the foreign key pointed by this field. Attribute is not mandatory, default value is empty string. If not specified a default value is used by the generator which in fact is the name of the field type. 3. joinColumn: specifies the column name from the join table which is used to make the relation. Attribute is not mandatory, default value is empty string. If not specified a default value is used by the generator which in fact is the name of the field. Example: Let's consider that we have class "A" and we have the following annotation on field "foreign": Relation (relationType=RelationType.ONE_TO_MANY). B foreign; The above means that we'll have relation One to Many and it will be assumed that the join table will have name "b" and the join column will have name "foreign" Relation (relationType=RelationType.ONE_TO_MANY, joinTable="jtable", joinColumn="jcolumn"). B foreign; The above means that we'll have relation One to Many and it will be assumed that the join table will have name "jtable" and the join column will have name "jcolumn"

Author:

Detelin Zlatev

Required Element Summary

RelationType

relationType

Optional Element Summary

java.lang.String	joinColumn
java.lang.String	joinTable

Element Detail

relationType

public abstract RelationType relationType

joinTable

public abstract java.lang.String joinTable

Default:

""

joinColumn

public abstract java.lang.String joinColumn

Default:

""