15 lines
470 B
Java
15 lines
470 B
Java
// annotations/database/Constraints.java
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// (c)2021 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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package annotations.database;
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import java.lang.annotation.*;
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@Target(ElementType.FIELD)
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@Retention(RetentionPolicy.RUNTIME)
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public @interface Constraints {
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boolean primaryKey() default false;
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boolean allowNull() default true;
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boolean unique() default false;
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}
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