Package ru.curs.celesta.dbutils

Class MaterializedViewCursor

java.lang.Object

ru.curs.celesta.dbutils.CsqlBasicDataAccessor<CallContext>

ru.curs.celesta.dbutils.BasicDataAccessor

ru.curs.celesta.dbutils.BasicCursor

ru.curs.celesta.dbutils.MaterializedViewCursor

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

LinecountCursor

public abstract class MaterializedViewCursor
extends BasicCursor

Materialized view Cursor.

Since:

2017-07-06

Author:

ioann

Constructor Summary

Constructors

Constructor	Description
MaterializedViewCursor(CallContext context)
MaterializedViewCursor(CallContext context, Set<String> fields)
MaterializedViewCursor(CallContext context, ColumnMeta<?>... columns)

Method Summary

Modifier and Type	Method	Description
static MaterializedViewCursor	create(MaterializedView view, CallContext callContext)	Creates a materialized view specific cursor.
static MaterializedViewCursor	create(MaterializedView view, CallContext callContext, Set<String> fields)	Creates a materialized view specific cursor.
void	getByValuesArray(Object... values)	Performs a search of a record by the key fields, throwing an exception if the record is not found.
Object[]	getCurrentKeyValues()	Returns an array of field values of the primary key.
MaterializedView	meta()	Returns materialized view description (meta information).
boolean	tryGetByValuesArray(Object... values)	Tries to perform a search of a record by the key fields, returning a value whether the record was found or not.
boolean	tryGetCurrent()	Retrieves a record from the database that corresponds to the fields of current primary key.

Methods inherited from class ru.curs.celesta.dbutils.BasicCursor

asCSVLine, canDelete, canInsert, canModify, clear, clearBuffer, copyFieldsFrom, copyFiltersFrom, copyOrderFrom, count, descOrders, findSet, first, getBufferCopy, getComplexFilter, getCurrentValues, getOrderBy, getValue, isEquivalent, last, limit, navigate, navigate, next, nextInSet, orderBy, orderBy, orderBy, orderByColumnNames, position, previous, reset, setComplexFilter, setFilter, setFilter, setRange, setRange, setRange, setRange, setRange, setRange, setValue, tryFindSet, tryFirst, tryLast

Methods inherited from class ru.curs.celesta.dbutils.BasicDataAccessor

canRead

Methods inherited from class ru.curs.celesta.dbutils.CsqlBasicDataAccessor

callContext, close, isClosed

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MaterializedViewCursor

public MaterializedViewCursor(CallContext context)

MaterializedViewCursor

public MaterializedViewCursor(CallContext context,
                              ColumnMeta<?>... columns)

MaterializedViewCursor

public MaterializedViewCursor(CallContext context,
                              Set<String> fields)

Method Detail

create

public static MaterializedViewCursor create(MaterializedView view,
                                            CallContext callContext)

Creates a materialized view specific cursor.

Parameters:

view - Cursor related materialized view

callContext - Call context that is used for cursor creation

Returns:

create

public static MaterializedViewCursor create(MaterializedView view,
                                            CallContext callContext,
                                            Set<String> fields)

Creates a materialized view specific cursor.

Parameters:

view - Cursor related materialized view

callContext - Call context that is used for cursor creation

fields - Fields the cursor should operate on

Returns:

meta

public MaterializedView meta()

Returns materialized view description (meta information).

Specified by:

meta in class BasicCursor

Returns:

getByValuesArray

public final void getByValuesArray(Object... values)

Performs a search of a record by the key fields, throwing an exception if the record is not found.

Parameters:

values - values of the key fields

tryGetByValuesArray

public final boolean tryGetByValuesArray(Object... values)

Tries to perform a search of a record by the key fields, returning a value whether the record was found or not.

Parameters:

values - values of the key fields

Returns:

true if the record is found, otherwise - false

tryGetCurrent

public final boolean tryGetCurrent()

Retrieves a record from the database that corresponds to the fields of current primary key.

Returns:

true if the record is retrieved, otherwise - false

getCurrentKeyValues

public Object[] getCurrentKeyValues()

Returns an array of field values of the primary key.

Returns: