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## javax.persistence
Annotation Type UniqueConstraint

    @Target(value={})
    @Retention(value=RUNTIME)
    public @interface UniqueConstraint

This annotation is used to specify that a unique constraint is to be included in the generated DDL for a primary or secondary table

Author:
  Emmanuel Bernard

Required Element Summary
`String[]` | `columnNames` An array of the column names that make up the constraint

Element Detail

### columnNames

    public abstract String[] columnNames

  An array of the column names that make up the constraint

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