com.haulmont.cuba.gui.data

Interface CollectionDatasource.Aggregatable<T extends Entity<K>,K>

Type Parameters:

T - type of entity

K - type of entity ID

All Superinterfaces:

CollectionDatasource<T,K>, Datasource<T>

All Known Implementing Classes:

AbstractTreeDatasource, AbstractTreeTableDatasource, AppPropertiesDatasource, BasicPermissionTreeDatasource, CollectionDatasourceImpl, CollectionPropertyDatasourceImpl, ConditionDescriptorsDs, ConditionsDs, ConstraintsDatasource, CustomCollectionDatasource, CustomGroupDatasource, CustomHierarchicalDatasource, CustomValueCollectionDatasource, CustomValueGroupDatasource, CustomValueHierarchicalDatasource, DiffTreeDatasource, EntityParamsDatasource, EntityPermissionTargetsDatasource, EntitySnapshotsDatasource, GroupDatasourceImpl, GroupPropertyDatasourceImpl, GroupsDatasource, HierarchicalDatasourceImpl, HierarchicalPropertyDatasourceImpl, JmxInstancesDatasource, ManagedBeanAttributeDatasource, ManagedBeanInfoDatasource, MultiplePermissionTargetsDatasource, PermissionsCollectionDatasource, RestorablePermissionDatasource, RolesDatasource, ScreenComponentsTreeDatasource, ScreenHistoryDatasource, ScreenPermissionTreeDatasource, ScreenProfilerDatasourse, SessionAttributesDatasource, SpecificPermissionTreeDatasource, StatisticsDatasource, ThreadsDatasource, UiPermissionsDatasource, UserSessionsDatasource, ValueCollectionDatasourceImpl, ValueGroupDatasourceImpl, ValueHierarchicalDatasourceImpl

Enclosing interface:

CollectionDatasource<T extends Entity<K>,K>

public static interface CollectionDatasource.Aggregatable<T extends Entity<K>,K>
extends CollectionDatasource<T,K>

CollectionDatasource which supports data aggregation.

Nested Class Summary

Nested classes/interfaces inherited from interface com.haulmont.cuba.gui.data.CollectionDatasource

CollectionDatasource.Aggregatable<T extends Entity<K>,K>, CollectionDatasource.CollectionChangeEvent<T extends Entity<K>,K>, CollectionDatasource.CollectionChangeListener<T extends Entity<K>,K>, CollectionDatasource.Indexed<T extends Entity<K>,K>, CollectionDatasource.Lazy<T extends Entity<K>,K>, CollectionDatasource.Operation, CollectionDatasource.Ordered<T extends Entity<K>,K>, CollectionDatasource.RefreshMode, CollectionDatasource.Sortable<T extends Entity<K>,K>, CollectionDatasource.SortDelegate<T extends Entity<K>,K>, CollectionDatasource.SupportsApplyToSelected<T extends Entity<K>,K>, CollectionDatasource.SupportsPaging<T extends Entity<K>,K>, CollectionDatasource.SupportsRefreshMode<T extends Entity<K>,K>, CollectionDatasource.SupportsSortDelegate<T extends Entity<K>,K>, CollectionDatasource.Suspendable<T extends Entity<K>,K>, CollectionDatasource.UnmuteEventsMode

Nested classes/interfaces inherited from interface com.haulmont.cuba.gui.data.Datasource

Datasource.CommitMode, Datasource.ItemChangeEvent<T extends Entity>, Datasource.ItemChangeListener<T extends Entity>, Datasource.ItemPropertyChangeEvent<T extends Entity>, Datasource.ItemPropertyChangeListener<T extends Entity>, Datasource.State, Datasource.StateChangeEvent<T extends Entity>, Datasource.StateChangeListener<T extends Entity>

Method Summary

Modifier and Type	Method and Description
java.util.Map<AggregationInfo,java.lang.String>	aggregate(AggregationInfo[] aggregationInfos, java.util.Collection<K> itemIds) Perform aggregation and return map with formatted string values.
java.util.Map<AggregationInfo,java.lang.Object>	aggregateValues(AggregationInfo[] aggregationInfos, java.util.Collection<K> itemIds) Perform aggregation and return map with aggregation info and aggregation column type, i.e.

Methods inherited from interface com.haulmont.cuba.gui.data.CollectionDatasource

addCollectionChangeListener, addItem, clear, containsItem, excludeItem, getCompiledLoadContext, getItem, getItemIds, getItemNN, getItems, getLastRefreshParameters, getMaxResults, getQuery, getQueryFilter, getRefreshOnComponentValueChange, includeItem, isCacheable, isSoftDeletion, modifyItem, mute, refresh, removeCollectionChangeListener, removeItem, resumeListeners, revert, setCacheable, setMaxResults, setQuery, setQuery, setQueryFilter, setRefreshOnComponentValueChange, setSoftDeletion, size, suspendListeners, unmute, updateItem

Methods inherited from interface com.haulmont.cuba.gui.data.Datasource

addItemChangeListener, addItemPropertyChangeListener, addStateChangeListener, commit, getCommitMode, getDataSupplier, getDsContext, getId, getItem, getItemIfValid, getLoadDynamicAttributes, getMetaClass, getState, getView, invalidate, isAllowCommit, isModified, refresh, removeItemChangeListener, removeItemPropertyChangeListener, removeStateChangeListener, setAllowCommit, setItem, setLoadDynamicAttributes, setup

Method Detail

aggregate

java.util.Map<AggregationInfo,java.lang.String> aggregate(AggregationInfo[] aggregationInfos,
                                                          java.util.Collection<K> itemIds)

Perform aggregation and return map with formatted string values.

Parameters:

aggregationInfos - aggregation infos

itemIds - collection of item ids

Returns:

map with aggregation info and formatted string values

aggregateValues

java.util.Map<AggregationInfo,java.lang.Object> aggregateValues(AggregationInfo[] aggregationInfos,
                                                                java.util.Collection<K> itemIds)

Perform aggregation and return map with aggregation info and aggregation column type, i.e. if aggregation was performed for Long type column it will return pair: AggregationInfo - Long.

Parameters:

aggregationInfos - aggregation infos

itemIds - collection of item ids

Returns:

map with aggregation info and aggregation column type