package liquibase.statement;

 import java.util.ArrayList;

 import java.util.Arrays;

 import java.util.List;

 public class UniqueConstraint implements ColumnConstraint {

     private String constraintName;

     private List<String> columns = new ArrayList<String>();

     public UniqueConstraint() {

     }

     public UniqueConstraint(String constraintName) {

         this.constraintName = constraintName;

     }

     public UniqueConstraint addColumns(String... columns) {

         this.columns.addAll(Arrays.asList(columns));

         return this;

     }

     public String getConstraintName() {

         return constraintName;

     }

     public void setConstraintName(String constraintName) {

         this.constraintName = constraintName;

     }

     public List<String> getColumns() {

         return columns;

     }

 }