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Posted to dev@cayenne.apache.org by Andrus Adamchik <an...@objectstyle.org> on 2009/06/26 13:49:43 UTC
Re: svn commit: r788657 - in /cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src: main/java/org/apache/cayenne/exp/ExpressionFactory.java test/java/org/apache/cayenne/exp/ExpressionFactoryTest.java
Yes.
On Jun 26, 2009, at 2:38 PM, Andrey Razumovsky wrote:
> Do you mean overloading "matchExp" and "matchAnyExp" with one-
> parameter
> methods?
>
> 2009/6/26 Andrus Adamchik <an...@objectstyle.org>
>
>> Andrey,
>>
>> thanks for applying this. Do you mind to perform this renaming that I
>> suggested earlier to better match the existing factory API:
>>
>> * s/matchObject/matchExp/
>> * s/matchObjects/matchAllExp|matchAnyExp/
>>
>> If not, no worries, I may do it myself.
>>
>> Andrus
>>
>>
>> On Jun 26, 2009, at 2:25 PM, andrey@apache.org wrote:
>>
>> Author: andrey
>>> Date: Fri Jun 26 11:25:15 2009
>>> New Revision: 788657
>>>
>>> URL: http://svn.apache.org/viewvc?rev=788657&view=rev
>>> Log:
>>> CAY-1241 Add method to ExpressionFactory to match against the
>>> primary key
>>> of an object or list of objects (based on patch by Laurentiu Cocanu)
>>>
>>> Modified:
>>>
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/main/
>>> java/org/apache/cayenne/exp/ExpressionFactory.java
>>>
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/test/
>>> java/org/apache/cayenne/exp/ExpressionFactoryTest.java
>>>
>>> Modified:
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/main/
>>> java/org/apache/cayenne/exp/ExpressionFactory.java
>>> URL:
>>> http://svn.apache.org/viewvc/cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/main/java/org/apache/cayenne/exp/ExpressionFactory.java?rev=788657&r1=788656&r2=788657&view=diff
>>>
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> ====================================================================
>>> ---
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/main/
>>> java/org/apache/cayenne/exp/ExpressionFactory.java
>>> (original)
>>> +++
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/main/
>>> java/org/apache/cayenne/exp/ExpressionFactory.java
>>> Fri Jun 26 11:25:15 2009
>>> @@ -25,6 +25,8 @@
>>> import java.util.List;
>>> import java.util.Map;
>>>
>>> +import org.apache.cayenne.ObjectId;
>>> +import org.apache.cayenne.Persistent;
>>> import org.apache.cayenne.exp.parser.ASTAdd;
>>> import org.apache.cayenne.exp.parser.ASTAnd;
>>> import org.apache.cayenne.exp.parser.ASTBetween;
>>> @@ -675,4 +677,55 @@
>>> }
>>> return exp;
>>> }
>>> +
>>> + /**
>>> + * Creates an expression that matches the primary key of
>>> object in
>>> + * <code>ObjectId</code>'s <code>IdSnapshot</code> for the
>>> argument
>>> + * <code>object</code>.
>>> + */
>>> + public static Expression matchObjectExp(Persistent object) {
>>> + ObjectId obid = object.getObjectId();
>>> + Map<String, ?> map = obid.getIdSnapshot();
>>> +
>>> + List<Expression> pairs = new
>>> ArrayList<Expression>(map.size());
>>> +
>>> + for (Map.Entry<String, ?> entry : map.entrySet()) {
>>> + Expression exp = expressionOfType(Expression.EQUAL_TO);
>>> + exp.setOperand(0, new ASTDbPath(entry.getKey()));
>>> + exp.setOperand(1, wrapPathOperand(entry.getValue()));
>>> + pairs.add(exp);
>>> + }
>>> +
>>> + return joinExp(Expression.AND, pairs);
>>> + }
>>> +
>>> + /**
>>> + * Creates an expression that matches any of the objects
>>> contained in
>>> the list
>>> + * <code>objects</code>
>>> + */
>>> + public static Expression matchObjectsExp(List<? extends
>>> Persistent>
>>> objects) {
>>> + if (objects == null || objects.size() == 0) {
>>> + return expFalse();
>>> + }
>>> +
>>> + return matchObjectsExp(objects.toArray(new
>>> Persistent[objects.size()]));
>>> + }
>>> +
>>> + /**
>>> + * Creates an expression that matches any of the objects
>>> contained in
>>> the
>>> + * <code>objects</code> array
>>> + */
>>> + public static Expression matchObjectsExp(Persistent...
>>> objects) {
>>> + if (objects == null || objects.length == 0) {
>>> + return expFalse();
>>> + }
>>> +
>>> + List<Expression> pairs = new
>>> ArrayList<Expression>(objects.length);
>>> +
>>> + for (Persistent object : objects) {
>>> + pairs.add(matchObjectExp(object));
>>> + }
>>> +
>>> + return joinExp(Expression.OR, pairs);
>>> + }
>>> }
>>>
>>> Modified:
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/test/
>>> java/org/apache/cayenne/exp/ExpressionFactoryTest.java
>>> URL:
>>> http://svn.apache.org/viewvc/cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/test/java/org/apache/cayenne/exp/ExpressionFactoryTest.java?rev=788657&r1=788656&r2=788657&view=diff
>>>
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> =
>>> ====================================================================
>>> ---
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/test/
>>> java/org/apache/cayenne/exp/ExpressionFactoryTest.java
>>> (original)
>>> +++
>>> cayenne/main/trunk/framework/cayenne-jdk1.5-unpublished/src/test/
>>> java/org/apache/cayenne/exp/ExpressionFactoryTest.java
>>> Fri Jun 26 11:25:15 2009
>>> @@ -20,11 +20,15 @@
>>> package org.apache.cayenne.exp;
>>>
>>> import java.util.ArrayList;
>>> +import java.util.Arrays;
>>> import java.util.List;
>>>
>>> import org.apache.art.Artist;
>>> import org.apache.art.Painting;
>>> +import org.apache.cayenne.DataObjectUtils;
>>> import org.apache.cayenne.ObjectContext;
>>> +import org.apache.cayenne.Persistent;
>>> +import org.apache.cayenne.query.SelectQuery;
>>> import org.apache.cayenne.unit.CayenneCase;
>>>
>>> public class ExpressionFactoryTest extends CayenneCase {
>>> @@ -244,4 +248,35 @@
>>> assertTrue(ExpressionFactory.inExp("paintingTitle",
>>> "p1").match(p1));
>>> assertFalse(ExpressionFactory.notInExp("paintingTitle",
>>> "p3").match(p3));
>>> }
>>> +
>>> + public void testMatchObject() {
>>> + ObjectContext dc = createDataContext();
>>> +
>>> + Artist a1 = dc.newObject(Artist.class);
>>> + a1.setArtistName("a1");
>>> + Artist a2 = dc.newObject(Artist.class);
>>> + a2.setArtistName("a2");
>>> + Artist a3 = dc.newObject(Artist.class);
>>> + a3.setArtistName("a3");
>>> + dc.commitChanges();
>>> +
>>> + SelectQuery query = new SelectQuery(Artist.class);
>>> +
>>> + query.setQualifier(ExpressionFactory.matchObjectExp(a2));
>>> + Object res = DataObjectUtils.objectForQuery(dc,
>>> query);//exception if >1 result
>>> + assertSame(res, a2);
>>> + assertTrue(query.getQualifier().match(res));
>>> +
>>> + query.setQualifier(ExpressionFactory.matchObjectsExp(a1,
>>> a3));
>>> + query.addOrdering("artistName", true);
>>> + List<Persistent> list = dc.performQuery(query);
>>> + assertEquals(list.size(), 2);
>>> + assertSame(list.get(0), a1);
>>> + assertSame(list.get(1), a3);
>>> + assertTrue(query.getQualifier().match(a1));
>>> + assertTrue(query.getQualifier().match(a3));
>>> +
>>> + assertEquals(query.getQualifier(),
>>> + ExpressionFactory.matchObjectsExp(Arrays.asList(a1,
>>> a3)));
>>> + }
>>> }
>>>
>>>
>>>
>>>
>>