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;
      }
  }