Java Persistence API 2.2 · javax.persistence.criteria.Selection

Method Summary

Modifier and Type	Method and Description
public Selection<X>	Returns: selection item alias(String alias name) Assigns an alias to the selection item.
public List<Selection<?>>	Returns: list of selection items getCompoundSelectionItems() Return the selection items composing a compound selection.
public boolean	Returns: boolean indicating whether the selection is a compound selection isCompoundSelection() Whether the selection item is a compound selection.

alias	back to summary
public Selection<X> alias(String name) Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item. Parameters name:String alias Returns:Selection<X> selection item

alias

public Selection<X> alias(String name)

Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item.

Parameters

Returns:Selection<X>

selection item

getCompoundSelectionItems	back to summary
public List<Selection<?>> getCompoundSelectionItems() Return the selection items composing a compound selection. Modifications to the list do not affect the query. Returns:List<Selection<?>> list of selection items Exceptions IllegalStateException: if selection is not a compound selection

getCompoundSelectionItems

public List<Selection<?>> getCompoundSelectionItems()

Return the selection items composing a compound selection. Modifications to the list do not affect the query.

list of selection items

Exceptions

isCompoundSelection	back to summary
public boolean isCompoundSelection() Whether the selection item is a compound selection. Returns:boolean boolean indicating whether the selection is a compound selection

isCompoundSelection

public boolean isCompoundSelection()

Whether the selection item is a compound selection.

Returns:boolean: boolean indicating whether the selection is a compound selection