Package com.mysema.query

Examples of com.mysema.query.QueryMetadata

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        QBookVersion bookVersion = QBookVersion.bookVersion;
        QBookMark bookMark = new QBookMark("bookVersion_definition_bookMarks");
        mixin.from(bookVersion);
        mixin.orderBy(bookVersion.definition.bookMarks.any().comment.asc());

        QueryMetadata md = mixin.getMetadata();
        assertEquals(Arrays.asList(new JoinExpression(JoinType.DEFAULT, bookVersion)),
                md.getJoins());
        assertEquals(Arrays.asList(new StringPath(bookVersion.definition.bookMarks, "comment").asc()),
                md.getOrderBy());

    }
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        return queryMixin.limit(limit);
    }

    @Override
    public CloseableIterator<T> iterate() {
        final QueryMetadata metadata = queryMixin.getMetadata();
        final List<OrderSpecifier<?>> orderBys = metadata.getOrderBy();
        final Integer queryLimit = metadata.getModifiers().getLimitAsInteger();
        final Integer queryOffset = metadata.getModifiers().getOffsetAsInteger();
        Sort sort = querySort;
        int limit;
        final int offset = queryOffset != null ? queryOffset.intValue() : 0;
        try {
            limit = maxDoc();
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    }

    @Override
    public Set<RelationalPath<?>> visit(SubQueryExpression<?> expr, Set<RelationalPath<?>> known) {
        Set<RelationalPath<?>> old = known;
        final QueryMetadata md = expr.getMetadata();
        known = visitJoins(md.getJoins(), known);
        for (Expression<?> p : md.getProjection()) {
            known = p.accept(this, known);
        }
        for (OrderSpecifier<?> o : md.getOrderBy()) {
            known = o.getTarget().accept(this, known);
        }
        for (Expression<?> g : md.getGroupBy()) {
            known = g.accept(this, known);
        }
        if (md.getHaving() != null) {
            known = md.getHaving().accept(this, known);
        }
        if (md.getWhere() != null) {
            md.getWhere().accept(this, known);
        }
        return old;
    }
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        // create query
        JPAQuery query = new JPAQuery(entityManager);
        query.from(cat).where(cat.name.eq("Kate")).list(cat);
       
        // get metadata
        QueryMetadata metadata = query.getMetadata();
        assertFalse(metadata.getJoins().isEmpty());
        assertTrue(metadata.getWhere() != null);
        assertTrue(metadata.getProjection().isEmpty());
       
        // serialize metadata
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(baos);
        out.writeObject(metadata);
        out.close();
       
        // deserialize metadata
        ByteArrayInputStream bain = new ByteArrayInputStream(baos.toByteArray());
        ObjectInputStream in = new ObjectInputStream(bain);
        QueryMetadata  metadata2 = (QueryMetadata) in.readObject();
        in.close();
       
        // validate it
        assertEquals(metadata.getJoins(), metadata2.getJoins());
        assertEquals(metadata.getWhere(), metadata2.getWhere());
        assertEquals(metadata.getProjection(), metadata2.getProjection());
       
        // create new query
        JPAQuery query2 = new JPAQuery(entityManager, metadata2);
        assertEquals("select cat\nfrom Cat cat\nwhere cat.name = ?1", query2.toString());
        query2.list(cat);       
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    @SuppressWarnings("unchecked")
    @Test
    public void test() {
        Templates templates = new JavaTemplates();
        QueryMetadata metadata = new DefaultQueryMetadata();
        List<ExtendedSubQueryExpression> subQueries = Arrays.<ExtendedSubQueryExpression>asList(
                new BooleanSubQuery(metadata),
                new ComparableSubQuery(Date.class,metadata),
                new DateSubQuery(Date.class,metadata),
                new DateTimeSubQuery(Date.class,metadata),
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        return null;
    }

    @Override
    public Void visit(SubQueryExpression<?> expr, QueryMetadata context) {
        QueryMetadata md = expr.getMetadata();
        for (Map.Entry<ParamExpression<?>, Object> entry : md.getParams().entrySet()) {
            context.setParam((ParamExpression)entry.getKey(), entry.getValue());
        }
        visit(md.getGroupBy(), context);       
        visit(md.getHaving(), context);
        for (JoinExpression join : md.getJoins()) {
            visit(join.getTarget(), context);
            visit(join.getCondition(), context);
        }
        visit(md.getProjection(), context);
        visit(md.getWhere(), context);
       
        return null;
    }
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    }

    @Override
    public Set<Expression<?>> visit(SubQueryExpression<?> expr, Set<Expression<?>> known) {
        Set<Expression<?>> old = known;
        final QueryMetadata md = expr.getMetadata();
        known = visitJoins(md.getJoins(), known);
        for (Expression<?> p : md.getProjection()) {
            known = p.accept(this, known);
        }
        for (OrderSpecifier<?> o : md.getOrderBy()) {
            known = o.getTarget().accept(this, known);
        }
        for (Expression<?> g : md.getGroupBy()) {
            known = g.accept(this, known);
        }
        if (md.getHaving() != null) {
            known = md.getHaving().accept(this, known);
        }
        if (md.getWhere() != null) {
            known = md.getWhere().accept(this, known);
        }
        return old;
    }
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    @Test
    public void test() {
        StringPath title = new StringPath("title");
        LuceneSerializer serializer = new LuceneSerializer(false,true);
        QueryMetadata metadata = new DefaultQueryMetadata();
        assertEquals("title:\"Hello World\"", serializer.toQuery(title.eq("Hello World"), metadata).toString());
        assertEquals("title:Hello World", serializer.toQuery(title.eq(new TermElement("Hello World")), metadata).toString());
    }
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public class QueryMetadataTest extends AbstractQueryTest {
   
    @Test
    public void Reusage() {
        QueryMetadata metadata = new DefaultQueryMetadata();
        metadata.addJoin(JoinType.DEFAULT, cat);
        metadata.addWhere(cat.name.startsWith("A"));
       
        CollQuery query = new CollQuery(metadata);
        query.bind(cat, cats);
        assertEquals(Arrays.asList(c3), query.list(cat));
    }
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    @Test
    public void test() {
        StringPath title = new StringPath("title");
        LuceneSerializer serializer = new LuceneSerializer(false,false);
        QueryMetadata metadata = new DefaultQueryMetadata();
        assertEquals("title:Hello World", serializer.toQuery(title.eq("Hello World"), metadata).toString());
        assertEquals("title:\"Hello World\"", serializer.toQuery(title.eq(new PhraseElement("Hello World")), metadata).toString());
    }
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Related Classes of com.mysema.query.QueryMetadata

  • com.mysema.query.collections.QueryMetadataTest
  • com.mysema.query.hibernate.search.SearchQuery
  • com.mysema.query.jpa.JPAQueryMixin
  • com.mysema.query.jpa.JPAQueryMixinTest
  • com.mysema.query.jpa.JPQLSerializerTest
  • com.mysema.query.jpa.SerializationBase
  • com.mysema.query.lucene.AbstractLuceneQuery
  • com.mysema.query.lucene.PhraseElementTest
  • com.mysema.query.lucene.TermElementTest
  • com.mysema.query.sql.RelationalPathExtractor
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