Package com.mysema.query

Examples of com.mysema.query.QueryModifiers

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        if (!metadata.getOrderBy().isEmpty() && !forCount) {
            fullTextQuery.setSort(serializer.toSort(metadata.getOrderBy()));
        }

        // paging
        QueryModifiers modifiers = metadata.getModifiers();
        if (modifiers != null && modifiers.isRestricting() && !forCount) {
            Integer limit = modifiers.getLimitAsInteger();
            Integer offset = modifiers.getOffsetAsInteger();
            if (limit != null) {
                fullTextQuery.setMaxResults(limit.intValue());
            }
            if (offset != null) {
                fullTextQuery.setFirstResult(offset.intValue());
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    private NumberPath<Integer> var = new NumberPath<Integer>(Integer.class, "var");

    @Test
    public void test() {
        assertResultSize(9, 9, QueryModifiers.EMPTY);
        assertResultSize(9, 2, new QueryModifiers(2l, null));
        assertResultSize(9, 2, new QueryModifiers(2l, 0l));
        assertResultSize(9, 2, new QueryModifiers(2l, 3l));
        assertResultSize(9, 9, new QueryModifiers(20l, null));
        assertResultSize(9, 9, new QueryModifiers(20l, 0l));
        assertResultSize(9, 5, new QueryModifiers(20l, 4l));
        assertResultSize(9, 0, new QueryModifiers(10l, 9l));
    }
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            if (maxDoc == 0) {
                return null;
            }
            final ScoreDoc[] scoreDocs = searcher.search(createQuery(), getFilter(), maxDoc, Sort.INDEXORDER, false, false).scoreDocs;
            int index = 0;
            QueryModifiers modifiers = queryMixin.getMetadata().getModifiers();
            Long offset = modifiers.getOffset();
            if (offset != null) {
                index = offset.intValue();
            }
            Long limit = modifiers.getLimit();
            if (unique && (limit == null ? scoreDocs.length - index > 1 :
                                           limit > 1 && scoreDocs.length > 1)) {
                throw new NonUniqueResultException("Unique result requested, but " + scoreDocs.length + " found.");
            } else if (scoreDocs.length > index) {
                Document document;
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     *
     * @param metadata
     * @param context
     */
    protected void serializeModifiers(QueryMetadata metadata, SQLSerializer context) {
        QueryModifiers mod = metadata.getModifiers();
        if (mod.getLimit() != null) {
            context.handle(limitTemplate, mod.getLimit());
        } else if (limitRequired) {
            context.handle(limitTemplate, Integer.MAX_VALUE);
        }
        if (mod.getOffset() != null) {
            context.handle(offsetTemplate, mod.getOffset());
        }
    }
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    }

    @Override
    public void serialize(QueryMetadata metadata, boolean forCountRow, SQLSerializer context) {
        if (!forCountRow && metadata.getModifiers().isRestricting() && !metadata.getJoins().isEmpty()) {
            QueryModifiers mod = metadata.getModifiers();
            if (mod.getOffset() == null) {
                // select top ...
                metadata = metadata.clone();
                metadata.addFlag(new QueryFlag(QueryFlag.Position.AFTER_SELECT,
                        Expressions.template(Integer.class, topTemplate, mod.getLimit())));
                context.serializeForQuery(metadata, forCountRow);
            } else {
                context.append(outerQueryStart);
                metadata = metadata.clone();
                WindowFunction<Long> rn = SQLExpressions.rowNumber().over();
                for (OrderSpecifier<?> os : metadata.getOrderBy()) {
                    rn.orderBy(os);
                }
                metadata.addProjection(rn.as("rn"));
                metadata.clearOrderBy();
                context.serializeForQuery(metadata, forCountRow);
                context.append(outerQueryEnd);
                if (mod.getLimit() == null) {
                    context.handle(offsetTemplate, mod.getOffset());
                } else {
                    context.handle(limitOffsetTemplate, mod.getOffset(), mod.getLimit() + mod.getOffset());
                }
                context.append(outerQuerySuffix);
            }

        } else {
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    }

    @Override
    public void serializeDelete(QueryMetadata metadata, RelationalPath<?> entity, SQLSerializer context) {
        // limit
        QueryModifiers mod = metadata.getModifiers();
        if (mod.isRestricting()) {
            metadata = metadata.clone();
            metadata.addFlag(new QueryFlag(QueryFlag.Position.AFTER_SELECT,
                    Expressions.template(Integer.class, topTemplate, mod.getLimit())));
        }

        context.serializeForDelete(metadata, entity);

        if (!metadata.getFlags().isEmpty()) {
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    @Override
    public void serializeUpdate(QueryMetadata metadata, RelationalPath<?> entity,
            List<Pair<Path<?>, Expression<?>>> updates, SQLSerializer context) {
        // limit
        QueryModifiers mod = metadata.getModifiers();
        if (mod.isRestricting()) {
            metadata = metadata.clone();
            metadata.addFlag(new QueryFlag(QueryFlag.Position.AFTER_SELECT,
                    Expressions.template(Integer.class, topTemplate, mod.getLimit())));
        }

        context.serializeForUpdate(metadata, entity, updates);

        if (!metadata.getFlags().isEmpty()) {
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            if (maxDoc == 0) {
                return null;
            }
            final ScoreDoc[] scoreDocs = searcher.search(createQuery(), getFilter(), maxDoc).scoreDocs;
            int index = 0;
            QueryModifiers modifiers = queryMixin.getMetadata().getModifiers();
            Long offset = modifiers.getOffset();
            if (offset != null) {
                index = offset.intValue();
            }
            Long limit = modifiers.getLimit();
            if (unique && (limit == null ? scoreDocs.length - index > 1 :
                                           limit > 1 && scoreDocs.length > 1)) {
                throw new NonUniqueResultException("Unique result requested, but " + scoreDocs.length + " found.");
            } else if (scoreDocs.length > index) {
                Document document;
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    }

    @Override
    public void serialize(QueryMetadata metadata, boolean forCountRow, SQLSerializer context) {
        if (!forCountRow && metadata.getModifiers().isRestricting() && !metadata.getJoins().isEmpty()) {
            QueryModifiers mod = metadata.getModifiers();

            if (mod.getOffset() == null) {
                context.append(limitQueryStart);
                context.serializeForQuery(metadata, forCountRow);
                context.handle(limitQueryEnd, mod.getLimit());
            } else {
                context.append(outerQueryStart);
                context.serializeForQuery(metadata, forCountRow);
                context.append(outerQueryEnd);

                if (mod.getLimit() == null) {
                    context.handle(offsetTemplate, mod.getOffset());
                } else {
                    context.handle(limitOffsetTemplate, mod.getOffset(), mod.getLimit());
                }
            }

        } else {
            context.serializeForQuery(metadata, forCountRow);
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    }

    @Test
    public void List_Sorted_Ascending_By_Year_Restrict_Limit_2_Offset_1() {
        query.where(year.between(1800, 2000));
        query.restrict(new QueryModifiers(2l, 1l));
        query.orderBy(year.asc());
        final List<Document> documents = query.list();
        assertFalse(documents.isEmpty());
        assertEquals(2, documents.size());
        assertEquals("1954", documents.get(0).get("year"));
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Related Classes of com.mysema.query.QueryModifiers

  • com.mysema.query.collections.DefaultQueryEngine
  • com.mysema.query.collections.PagingTest
  • com.mysema.query.hibernate.search.SearchQuery
  • com.mysema.query.jpa.hibernate.AbstractHibernateQuery
  • com.mysema.query.lucene.AbstractLuceneQuery
  • com.mysema.query.lucene.LuceneQueryTest
  • com.mysema.query.sql.CUBRIDTemplates
  • com.mysema.query.sql.DerbyTemplates
  • com.mysema.query.sql.FirebirdTemplates
  • com.mysema.query.sql.OracleTemplates
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