Java源码示例：org.apache.cayenne.exp.Property
示例1
/**
* @param attributesOrRelationships an array of properties to exclude.
* @return a new instance of Constraints.
*/
public ConstraintsBuilder<T> excludeProperties(Property<?>... attributesOrRelationships) {
String[] names = new String[attributesOrRelationships.length];
for (int i = 0; i < attributesOrRelationships.length; i++) {
names[i] = attributesOrRelationships[i].getName();
}
return excludeProperties(names);
}
示例2
public <T> SelectQuery<T> createQueryWithParentQualifier(NestedResourceEntity<T> entity) {
SelectQuery<T> query = createQuery(entity);
ObjRelationship objRelationship = objRelationshipForIncomingRelationship(entity);
String reversePath = objRelationship.getReverseDbRelationshipPath();
List<Property<?>> properties = new ArrayList<>();
properties.add(Property.createSelf(entity.getType()));
AgEntity<?> parentEntity = entity.getParent().getAgEntity();
for (AgAttribute attribute : entity.getParent().getAgEntity().getIds()) {
DbAttribute dbAttribute = dbAttributeForAgAttribute(parentEntity, attribute);
Expression propertyExp = ExpressionFactory.dbPathExp(reversePath
+ "."
+ dbAttribute.getName());
properties.add(Property.create(propertyExp, (Class) attribute.getType()));
}
query.setColumns(properties);
// Translate expression from parent.
// Find the closest parent in the chain that has a query of its own, and use that as a base.
Expression parentQualifier = resolveQualifier(entity, null);
if (parentQualifier != null) {
query.andQualifier(parentQualifier);
}
return query;
}
示例3
public <T, P> SelectQuery<T> createQueryWithParentIdsQualifier(NestedResourceEntity<T> entity, Iterator<P> parentData) {
SelectQuery<T> query = createQuery(entity);
ObjRelationship objRelationship = objRelationshipForIncomingRelationship(entity);
String outgoingPath = objRelationship.getReverseDbRelationshipPath();
List<Property<?>> properties = new ArrayList<>();
properties.add(Property.createSelf(entity.getType()));
AgEntity<?> parentEntity = entity.getParent().getAgEntity();
for (AgAttribute attribute : parentEntity.getIds()) {
DbAttribute dbAttribute = dbAttributeForAgAttribute(parentEntity, attribute);
Expression propertyExp = ExpressionFactory.dbPathExp(outgoingPath
+ "."
+ dbAttribute.getName());
properties.add(Property.create(propertyExp, (Class) attribute.getType()));
}
query.setColumns(properties);
// build id-based qualifier
List<Expression> qualifiers = new ArrayList<>();
// TODO: this only works for single column ids
parentData.forEachRemaining(p -> qualifiers.add(ExpressionFactory.matchDbExp(outgoingPath, p)));
// TODO: There is some functionality in Cayenne that allows to break long OR qualifiers in a series of queries.
// How do we use it here?
query.andQualifier(ExpressionFactory.joinExp(Expression.OR, qualifiers));
return query;
}
示例4
protected void buildChildrenQuery(UpdateContext context, ResourceEntity<?> entity, Map<String, NestedResourceEntity<?>> children) {
if (!children.isEmpty()) {
for (Map.Entry<String, NestedResourceEntity<?>> e : children.entrySet()) {
NestedResourceEntity child = e.getValue();
if (entityResolver.getObjEntity(child.getType()) == null) {
continue;
}
List<Property> properties = new ArrayList<>();
properties.add(Property.createSelf(child.getType()));
ObjRelationship objRelationship = objRelationshipForIncomingRelationship(child);
for (AgAttribute attribute : entity.getAgEntity().getIds()) {
properties.add(Property.create(ExpressionFactory.dbPathExp(
objRelationship.getReverseDbRelationshipPath() + "." + attribute.getName()),
(Class) attribute.getType()));
}
// transfer expression from parent
if (entity.getSelect().getQualifier() != null) {
child.andQualifier(translateExpressionToSource(objRelationship, entity.getSelect().getQualifier()));
}
SelectQuery childQuery = buildQuery(context, child);
childQuery.setColumns(properties);
}
}
}
示例5
/**
* @since 1.1
*/
@Override
public DefaultCreateOrUpdateBuilder<T> matchBy(Property<?>... matchAttributes) {
this.mapper = null;
this.mapperBuilder.matchBy(matchAttributes);
return this;
}
示例6
@Test
public void testMatchBy_Additivity() {
Map<String, Mapper> mappers = builder.matchBy(Property.create("a", Object.class), Property.create("b", Object.class))
.matchBy("c").createPathMappers();
assertEquals(3, mappers.size());
assertTrue(mappers.containsKey("db:a"));
assertTrue(mappers.containsKey("db:b"));
assertTrue(mappers.containsKey("db:c"));
}
示例7
/**
* @since 1.2
*/
@Override
public SimpleResponse unrelate(Class<?> type, Object sourceId, Property<?> relationship) {
return unrelate(type, sourceId, relationship.getName());
}
示例8
/**
* @since 1.2
*/
@Override
public SimpleResponse unrelate(Class<?> type, Object sourceId, Property<?> relationship, Object targetId) {
return unrelate(type, sourceId, relationship.getName(), targetId);
}
示例9
public static ByKeyObjectMapperFactory byKey(Property<?> key) {
return new ByKeyObjectMapperFactory(key.getName());
}
示例10
@Override
public SelectBuilder<T> parent(Class<?> parentType, Object parentId, Property<T> relationshipFromParent) {
context.setParent(new EntityParent<>(parentType, parentId, relationshipFromParent.getName()));
return this;
}
示例11
@Override
public SelectBuilder<T> parent(Class<?> parentType, Map<String, Object> parentIds,
Property<T> relationshipFromParent) {
context.setParent(new EntityParent<>(parentType, parentIds, relationshipFromParent.getName()));
return this;
}
示例12
@Override
public SelectBuilder<T> toManyParent(Class<?> parentType, Object parentId,
Property<? extends Collection<T>> relationshipFromParent) {
return parent(parentType, parentId, relationshipFromParent.getName());
}
示例13
@Override
public SelectBuilder<T> toManyParent(Class<?> parentType, Map<String, Object> parentIds,
Property<? extends Collection<T>> relationshipFromParent) {
return parent(parentType, parentIds, relationshipFromParent.getName());
}
示例14
@Override
public UpdateBuilder<T> parent(Class<?> parentType, Object parentId, Property<T> relationshipFromParent) {
context.setParent(new EntityParent<>(parentType, parentId, relationshipFromParent.getName()));
return this;
}
示例15
@Override
public UpdateBuilder<T> parent(Class<?> parentType, Map<String, Object> parentIds,
Property<T> relationshipFromParent) {
context.setParent(new EntityParent<>(parentType, parentIds, relationshipFromParent.getName()));
return this;
}
示例16
@Override
public UpdateBuilder<T> toManyParent(Class<?> parentType, Object parentId,
Property<? extends Collection<T>> relationshipFromParent) {
return parent(parentType, parentId, relationshipFromParent.getName());
}
示例17
@Override
public UpdateBuilder<T> toManyParent(Class<?> parentType, Map<String, Object> parentIds,
Property<? extends Collection<T>> relationshipFromParent) {
return parent(parentType, parentIds, relationshipFromParent.getName());
}
示例18
/**
* @since 1.20
*/
@Override
public UpdateBuilder<T> mapper(Property<?> property) {
return mapper(ByKeyObjectMapperFactory.byKey(property));
}
示例19
@Override
public DeleteBuilder<T> parent(Class<?> parentType, Object parentId, Property<T> relationshipFromParent) {
context.setParent(new EntityParent<>(parentType, parentId, relationshipFromParent.getName()));
return this;
}
示例20
@Override
public DeleteBuilder<T> parent(Class<?> parentType, Map<String, Object> parentIds, Property<T> relationshipFromParent) {
context.setParent(new EntityParent<>(parentType, parentIds, relationshipFromParent.getName()));
return this;
}
示例21
@Override
public DeleteBuilder<T> toManyParent(Class<?> parentType, Object parentId,
Property<? extends Collection<T>> relationshipFromParent) {
return parent(parentType, parentId, relationshipFromParent.getName());
}
示例22
@Override
public DeleteBuilder<T> toManyParent(Class<?> parentType, Map<String, Object> parentIds, Property<? extends Collection<T>> relationshipFromParent) {
return parent(parentType, parentIds, relationshipFromParent.getName());
}
示例23
DeleteBuilder<T> toManyParent(Class<?> parentType, Object parentId,
Property<? extends Collection<T>> relationshipFromParent);
示例24
public <S> ConstraintsBuilder<T> toManyPath(Property<List<S>> path, ConstraintsBuilder<S> subentityBuilder) {
return path(path.getName(), subentityBuilder);
}
示例25
public static <T> Consumer<SelectContext<T>> startsWithFilter(Property<?> property, UriInfo uriInfo) {
String value = ParameterExtractor.string(uriInfo.getQueryParameters(), QUERY);
return startsWithFilter(property, value);
}
示例26
public static <T> Consumer<SelectContext<T>> startsWithFilter(Property<?> property, String value) {
return c -> StartsWithFilter
.getInstance()
.filter(c, property.getName(), value)
.ifPresent(exp -> processStartsWith(c, exp));
}
示例27
protected <T> void appendAttribute(ResourceEntity<?> entity, Property<T> property, Class<T> type) {
appendAttribute(entity, property.getName(), type);
}
示例28
protected <T> void appendPersistenceAttribute(ResourceEntity<?> entity, Property<T> property, Class<T> javaType) {
appendPersistenceAttribute(entity, property.getName(), javaType);
}
示例29
protected <T> void appendAttribute(ResourceEntity<?> entity, Property<T> property, Class<T> type) {
appendAttribute(entity, property.getName(), type);
}
示例30
protected <T> void appendPersistenceAttribute(ResourceEntity<?> entity, Property<T> property, Class<T> javaType) {
appendPersistenceAttribute(entity, property.getName(), javaType);
}
