Examples with ObjEntity org.apache.cayenne.map.ObjEntity used on opensource projects

Example 16 with ObjEntity

use of org.apache.cayenne.map.ObjEntity in project cayenne by apache.

the class EJBQLQueryMetadata method resolve.

boolean resolve(EntityResolver resolver, EJBQLQuery query) {
    EJBQLCompiledExpression expression = query.getExpression(resolver);
    setPrefetchTree(expression.getPrefetchTree());
    resultSetMapping = expression.getResult() != null ? expression.getResult().getResolvedComponents(resolver) : null;
    ObjEntity root = expression.getRootDescriptor().getEntity();
    if (!super.resolve(root, resolver)) {
        return false;
    }
    if (QueryCacheStrategy.NO_CACHE == getCacheStrategy()) {
        return true;
    }
    // create a unique key based on entity, EJBQL, and parameters
    StringBuilder key = new StringBuilder();
    if (query.getEjbqlStatement() != null) {
        key.append('/').append(query.getEjbqlStatement());
    }
    if (query.getFetchLimit() > 0) {
        key.append('/').append(query.getFetchLimit());
    }
    Map<String, Object> namedParameters = query.getNamedParameters();
    if (!namedParameters.isEmpty()) {
        List<String> keys = new ArrayList<>(namedParameters.keySet());
        Collections.sort(keys);
        for (String parameterKey : keys) {
            key.append('/').append(parameterKey).append('=').append(namedParameters.get(parameterKey));
        }
    }
    Map<Integer, Object> positionalParameters = query.getPositionalParameters();
    if (!positionalParameters.isEmpty()) {
        List<Integer> keys = new ArrayList<>(positionalParameters.keySet());
        Collections.sort(keys);
        for (Integer parameterKey : keys) {
            key.append('/').append(parameterKey).append('=').append(positionalParameters.get(parameterKey));
        }
    }
    if (query.getFetchOffset() > 0 || query.getFetchLimit() > 0) {
        key.append('/');
        if (query.getFetchOffset() > 0) {
            key.append('o').append(query.getFetchOffset());
        }
        if (query.getFetchLimit() > 0) {
            key.append('l').append(query.getFetchLimit());
        }
    }
    this.cacheKey = key.toString();
    return true;
}

Example 17 with ObjEntity

use of org.apache.cayenne.map.ObjEntity in project cayenne by apache.

the class SQLTemplateMetadata method resolve.

boolean resolve(Object root, EntityResolver resolver, SQLTemplate query) {
    if (super.resolve(root, resolver)) {
        if ((!query.isUseScalar() && !query.isFetchingDataRows()) && (query.getResultColumnsTypes() != null && !query.getResultColumnsTypes().isEmpty())) {
            throw new CayenneRuntimeException("Error caused by using root in query with resultColumnTypes without scalar or dataRow.");
        }
        if (query.getResult() != null && query.getResultColumnsTypes() != null) {
            throw new CayenneRuntimeException("Caused by trying to override result column types of query.");
        }
        if (query.isFetchingDataRows() && query.isUseScalar()) {
            throw new CayenneRuntimeException("Can't set both use scalar and fetching data rows.");
        }
        buildResultSetMappingForColumns(query);
        resultSetMapping = query.getResult() != null ? query.getResult().getResolvedComponents(resolver) : query.isUseScalar() ? new ArrayList<>() : null;
        isSingleResultSetMapping = resultSetMapping != null && resultSetMapping.size() == 1;
        // generate unique cache key...
        if (QueryCacheStrategy.NO_CACHE == getCacheStrategy()) {
        } else {
            // create a unique key based on entity, SQL, and parameters
            StringBuilder key = new StringBuilder();
            ObjEntity entity = getObjEntity();
            if (entity != null) {
                key.append(entity.getName());
            } else if (dbEntity != null) {
                key.append("db:").append(dbEntity.getName());
            }
            if (query.getDefaultTemplate() != null) {
                key.append('/').append(query.getDefaultTemplate());
            }
            Map<String, ?> parameters = query.getParams();
            if (!parameters.isEmpty()) {
                List<String> keys = new ArrayList<>(parameters.keySet());
                Collections.sort(keys);
                for (String parameterKey : keys) {
                    key.append('/').append(parameterKey).append('=').append(parameters.get(parameterKey));
                }
            }
            for (Object parameter : query.getPositionalParams()) {
                key.append("/p:").append(parameter);
            }
            if (query.getFetchOffset() > 0 || query.getFetchLimit() > 0) {
                key.append('/');
                if (query.getFetchOffset() > 0) {
                    key.append('o').append(query.getFetchOffset());
                }
                if (query.getFetchLimit() > 0) {
                    key.append('l').append(query.getFetchLimit());
                }
            }
            this.cacheKey = key.toString();
        }
        return true;
    }
    return false;
}

Example 18 with ObjEntity

use of org.apache.cayenne.map.ObjEntity in project cayenne by apache.

the class SelectById method createReplacementQuery.

@Override
protected Query createReplacementQuery(EntityResolver resolver) {
    ObjEntity entity = root.resolve(resolver);
    ObjectSelect<?> query = new ObjectSelect<>().entityName(entity.getName()).where(idSpec.getQualifier(entity)).cacheStrategy(cacheStrategy, cacheGroup);
    if (prefetches != null) {
        query.prefetch(prefetches);
    }
    if (fetchingDataRows) {
        query.fetchDataRows();
    }
    return query;
}

Example 19 with ObjEntity

use of org.apache.cayenne.map.ObjEntity in project cayenne by apache.

the class RelationshipQuery method updateMetadata.

void updateMetadata(EntityResolver resolver) {
    // caching metadata as it may be accessed multiple times (at a DC and DD level)
    if (metadataResolver != resolver) {
        if (objectId == null) {
            throw new CayenneRuntimeException("Can't resolve query - objectID is null.");
        }
        ClassDescriptor descriptor = resolver.getClassDescriptor(objectId.getEntityName());
        this.arc = (ArcProperty) descriptor.getProperty(relationshipName);
        if (arc == null) {
            throw new CayenneRuntimeException("No relationship named %s found in entity %s; object id: %s", relationshipName, objectId.getEntityName(), objectId);
        }
        this.metadata = new DefaultQueryMetadata() {

            @Override
            public boolean isRefreshingObjects() {
                return refreshing;
            }

            @Override
            public ObjEntity getObjEntity() {
                return arc.getTargetDescriptor().getEntity();
            }

            @Override
            public ClassDescriptor getClassDescriptor() {
                return arc.getTargetDescriptor();
            }

            @Override
            public int getStatementFetchSize() {
                return statementFetchSize;
            }
        };
        this.metadataResolver = resolver;
    }
}

Example 20 with ObjEntity

use of org.apache.cayenne.map.ObjEntity in project cayenne by apache.

the class NestedDataContextWriteIT method testCommitChangesToParentFlattened.

@Test
public void testCommitChangesToParentFlattened() {
    final DataContext context = createDataContext();
    final ObjectContext childContext = runtime.newContext(context);
    final Artist childO1 = childContext.newObject(Artist.class);
    childO1.setArtistName("Master");
    final ArtGroup childO2 = childContext.newObject(ArtGroup.class);
    childO2.setName("Detail1");
    childO2.addToArtistArray(childO1);
    ObjEntity ent = childContext.getEntityResolver().getObjEntity("ArtGroup");
    Collection<ObjRelationship> rels = ent.getDeclaredRelationships();
    assertEquals(3, rels.size());
    assertEquals(1, childO1.getGroupArray().size());
    assertEquals(1, childO2.getArtistArray().size());
    queryInterceptor.runWithQueriesBlocked(() -> {
        childContext.commitChangesToParent();
        assertEquals(PersistenceState.COMMITTED, childO1.getPersistenceState());
        assertEquals(PersistenceState.COMMITTED, childO2.getPersistenceState());
        Artist parentO1 = (Artist) context.getGraphManager().getNode(childO1.getObjectId());
        assertNotNull(parentO1);
        assertEquals(PersistenceState.NEW, parentO1.getPersistenceState());
        ArtGroup parentO2 = (ArtGroup) context.getGraphManager().getNode(childO2.getObjectId());
        assertNotNull(parentO2);
        assertEquals(PersistenceState.NEW, parentO2.getPersistenceState());
        assertEquals(1, parentO1.getGroupArray().size());
        assertEquals(1, parentO2.getArtistArray().size());
        assertTrue(parentO2.getArtistArray().contains(parentO1));
        assertTrue(parentO1.getGroupArray().contains(parentO2));
    });
}