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Querqy library for query rewriting: Querqy Core

There is a newer version: 3.18.1

/**
 * 
 */
package querqy.model;

import java.util.List;

/**
 * @author René Kriegler, @renekrie
 *
 */
public class DisjunctionMaxQuery extends SubQuery implements BooleanClause,
      BooleanParent {

   public DisjunctionMaxQuery(final BooleanQuery parentQuery, final Occur occur, final boolean generated) {
      super(parentQuery, occur, generated);
   }

   public List getTerms() {
      return getClauses(Term.class);
   }

   @Override
   public  T accept(final NodeVisitor visitor) {
      return visitor.visit(this);
   }

   @Override
   public String toString() {
      return "DisjunctionMaxQuery [occur=" + occur + ", clauses=" + clauses
            + "]";
   }

   @Override
   public BooleanClause clone(final BooleanQuery newParent) {
       return clone(newParent, this.occur, this.generated);
   }

   @Override
   public BooleanClause clone(final BooleanQuery newParent, final boolean generated) {
       return clone(newParent, this.occur, generated);
   }

   @Override
   public BooleanClause clone(final BooleanQuery newParent, final Occur occur) {
       return clone(newParent, this.generated);
   }

   @Override
   public BooleanClause clone(final BooleanQuery newParent, final Occur occur, final boolean generated) {
       final DisjunctionMaxQuery dmq = new DisjunctionMaxQuery(newParent, occur, generated);
       for (final DisjunctionMaxClause clause : clauses) {
           dmq.addClause(clause.clone(dmq, generated));
       }
       return dmq;
   }

    @Override
    public void removeClauseAndTraverseTree(final DisjunctionMaxClause clause) {
        super.removeClause(clause);

        if (this.clauses.isEmpty() && this.getParent() != null) {
            this.getParent().removeClauseAndTraverseTree(this);
        }
    }

    @Override
    public void removeClauseAndTraverseTree(final BooleanQuery booleanQuery) {
        this.removeClauseAndTraverseTree((DisjunctionMaxClause) booleanQuery);
    }
}