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1 package org.hibernate.criterion;
2
3 import java.util.ArrayList  ;
4 import java.util.Iterator ;
5 import java.util.List ;
6
7 import org.hibernate.Criteria;
8 import org.hibernate.HibernateException;
9 import org.hibernate.engine.TypedValue;
10 import org.hibernate.util.StringHelper;
11
12
18 public class Junction implements Criterion {
19
20 private final List criteria = new ArrayList ();
21 private final String op;
22
23 protected Junction(String op) {
24 this.op = op;
25 }
26
27 public Junction add(Criterion criterion) {
28 criteria.add(criterion);
29 return this;
30 }
31
32 public String getOp() {
33 return op;
34 }
35
36 public TypedValue[] getTypedValues(Criteria crit, CriteriaQuery criteriaQuery)
37 throws HibernateException {
38 ArrayList typedValues = new ArrayList ();
39 Iterator iter = criteria.iterator();
40 while ( iter.hasNext() ) {
41 TypedValue[] subvalues = ( (Criterion) iter.next() ).getTypedValues(crit, criteriaQuery);
42 for ( int i=0; i<subvalues.length; i++ ) {
43 typedValues.add( subvalues[i] );
44 }
45 }
46 return (TypedValue[]) typedValues.toArray( new TypedValue[ typedValues.size() ] );
47 }
48
49 public String toSqlString(Criteria crit, CriteriaQuery criteriaQuery)
50 throws HibernateException {
51
52 if ( criteria.size()==0 ) return "1=1";
53
54 StringBuffer buffer = new StringBuffer ()
55 .append('(');
56 Iterator iter = criteria.iterator();
57 while ( iter.hasNext() ) {
58 buffer.append( ( (Criterion) iter.next() ).toSqlString(crit, criteriaQuery) );
59 if ( iter.hasNext() ) buffer.append(' ').append(op).append(' ');
60 }
61 return buffer.append(')').toString();
62 }
63
64
67 public String toString() {
68 return '(' + StringHelper.join( ' ' + op + ' ', criteria.iterator() ) + ')';
69 }
70
71 }
72 |
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