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Viewing changes to src/org/hibernate/criterion/IdentifierEqExpression.java

  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2007-10-14 14:43:34 UTC
  • Revision ID: james.westby@ubuntu.com-20071014144334-eamc8i0q10gs1aro
Tags: upstream-3.2.5
Import upstream version 3.2.5

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src/org/hibernate/criterion/IdentifierEqExpression.java
 
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//$Id: IdentifierEqExpression.java 5685 2005-02-12 07:19:50Z steveebersole $
 
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package org.hibernate.criterion;
 
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import org.hibernate.Criteria;
 
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import org.hibernate.HibernateException;
 
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import org.hibernate.engine.TypedValue;
 
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import org.hibernate.util.StringHelper;
 
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/**
 
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 * An identifier constraint
 
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 * @author Gavin King
 
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 */
 
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public class IdentifierEqExpression implements Criterion {
 
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        private final Object value;
 
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        protected IdentifierEqExpression(Object value) {
 
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                this.value = value;
 
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        }
 
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        public String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery)
 
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        throws HibernateException {
 
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                String[] columns = criteriaQuery.getIdentifierColumns(criteria);
 
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                String result = StringHelper.join(
 
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                        " and ",
 
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                        StringHelper.suffix( columns, " = ?" )
 
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                );
 
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                if (columns.length>1) result = '(' + result + ')';
 
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                return result;
 
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                //TODO: get SQL rendering out of this package!
 
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        }
 
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        public TypedValue[] getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery)
 
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        throws HibernateException {
 
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                return new TypedValue[] { criteriaQuery.getTypedIdentifierValue(criteria, value) };
 
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        }
 
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        public String toString() {
 
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                return "id = " + value;
 
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        }
 
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}