4.3.2.5 Index

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4.3.2.5.1 Synopsis

4.3.2.5.2 columns

4.3.2.5.3 name

4.3.2.5.4 unique

Annotation for a database index.

4.3.2.5.1 Synopsis

 @Target(value={java.lang.annotation.ElementType.TYPE, java.lang.annotation.ElementType.FIELD, java.lang.annotation.ElementType.METHOD}) @Retention(value=java.lang.annotation.RetentionPolicy.RUNTIME) public @interface Index {
  public String name ;
  public String unique ;
  public Column[] columns ;
}

Figure 4.28 Index Class

4.3.2.5.2 columns

Columns that compose this index.

Parameters
return	columns that compose this index

4.3.2.5.3 name

Name of the index

Parameters
return	the name of the index

4.3.2.5.4 unique

Whether this index is unique

Parameters
return	whether this index is unique