Package io.permazen.core

Class ListElementIndex<E>

java.lang.Object

io.permazen.core.SchemaItem

io.permazen.core.Index

io.permazen.core.SimpleIndex<T>

io.permazen.core.ComplexSubFieldIndex<C,E>

io.permazen.core.CollectionElementIndex<List<E>,E>

io.permazen.core.ListElementIndex<E>

Type Parameters:

E - list element type

public class ListElementIndex<E>
extends CollectionElementIndex<List<E>,E>

An index on the elements of a list field.

Method Summary

Modifier and Type	Method	Description
CoreIndex2<E,ObjId,Integer>	getElementIndex(Transaction tx)	Get this index's view of the given transaction, including list index.
<R> R	visit(IndexSwitch<R> target)	Apply visitor pattern.

Methods inherited from class io.permazen.core.ComplexSubFieldIndex

getIndex

Methods inherited from class io.permazen.core.SimpleIndex

getEncoding, getField, getKey, getKey

Methods inherited from class io.permazen.core.Index

genericize, getEncodings, getFields, getKey, getKey, getObjType, isComposite, toString

Methods inherited from class io.permazen.core.SchemaItem

getName, getSchema, getSchemaId, getStorageId

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

getElementIndex

public CoreIndex2<E,ObjId,Integer> getElementIndex(Transaction tx)

Get this index's view of the given transaction, including list index.

The returned index includes the list elements and their index positions in the list.

Parameters:

tx - transaction

Returns:

view of this index in tx

Throws:

IllegalArgumentException - if tx is null

visit

public <R> R visit(IndexSwitch<R> target)

Description copied from class: Index

Apply visitor pattern.

Specified by:

visit in class Index

Type Parameters:

R - visitor return type

Parameters:

target - target to invoke

Returns:

return value from the method of target corresponding to this instance's type