Package org.h2.table

Class DataChangeDeltaTable

java.lang.Object

org.h2.engine.DbObject

org.h2.schema.SchemaObject

org.h2.table.Table

org.h2.table.VirtualTable

org.h2.table.VirtualConstructedTable

org.h2.table.DataChangeDeltaTable

All Implemented Interfaces:

HasSQL

public class DataChangeDeltaTable
extends VirtualConstructedTable

A data change delta table.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DataChangeDeltaTable.ResultOption	Result option.

Field Summary

Fields

Modifier and Type	Field	Description
private Expression[]	expressions
private DataChangeDeltaTable.ResultOption	resultOption
private DataChangeStatement	statement

Fields inherited from class org.h2.table.Table

columns, compareMode, EXCLUSIVE_LOCK, isHidden, READ_LOCK, TYPE_CACHED, TYPE_MEMORY, WRITE_LOCK

Fields inherited from class org.h2.engine.DbObject

AGGREGATE, comment, COMMENT, CONSTANT, CONSTRAINT, database, DOMAIN, FUNCTION_ALIAS, INDEX, RIGHT, ROLE, SCHEMA, SEQUENCE, SETTING, SYNONYM, TABLE_OR_VIEW, trace, TRIGGER, USER

Fields inherited from interface org.h2.util.HasSQL

ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

Constructor Summary

Constructors

Constructor	Description
DataChangeDeltaTable(Schema schema, SessionLocal session, DataChangeStatement statement, DataChangeDeltaTable.ResultOption resultOption)

Method Summary

Modifier and Type	Method	Description
boolean	canGetRowCount(SessionLocal session)	Check if the row count can be retrieved quickly.
static void	collectInsertedFinalRow(SessionLocal session, Table table, ResultTarget deltaChangeCollector, DataChangeDeltaTable.ResultOption deltaChangeCollectionMode, Row newRow)	Collects final row for INSERT operations.
ResultInterface	getResult(SessionLocal session)	Read the rows from the table.
long	getRowCount(SessionLocal session)	Get the row count for this table.
long	getRowCountApproximation(SessionLocal session)	Get the approximated row count for this table.
java.lang.StringBuilder	getSQL(java.lang.StringBuilder builder, int sqlFlags)	Appends the SQL statement of this object to the specified builder.
boolean	isDeterministic()	Check if the table is deterministic.

Methods inherited from class org.h2.table.VirtualConstructedTable

getMaxDataModificationId, getScanIndex

Methods inherited from class org.h2.table.VirtualTable

addIndex, addRow, canDrop, canReference, checkRename, checkSupportAlter, close, getCreateSQL, getIndexes, getTableType, isInsertable, removeRow, truncate

Methods inherited from class org.h2.table.Table

addConstraint, addDependencies, addDependentView, addSequence, addSynonym, addTrigger, canTruncate, checkDeadlock, checkWritingAllowed, compareValues, convertInsertRow, convertUpdateRow, createRow, doesColumnExist, dropMultipleColumnsConstraintsAndIndexes, findColumn, findPrimaryKey, fire, fireAfterRow, fireBeforeRow, fireRow, getBestPlanItem, getCheckForeignKeyConstraints, getChildren, getColumn, getColumn, getColumn, getColumns, getCompareMode, getConstraints, getCreateSQLForCopy, getDependentViews, getDiskSpaceUsed, getIdentityColumn, getIndex, getIndexForColumn, getMainIndexColumn, getNullRow, getOnCommitDrop, getOnCommitTruncate, getPrimaryKey, getRow, getRowFactory, getRowIdColumn, getScanIndex, getSQLTableType, getTemplateRow, getTemplateSimpleRow, getTriggers, getType, hasSelectTrigger, isGlobalTemporary, isHidden, isLockedExclusively, isLockedExclusivelyBy, isPersistData, isPersistIndexes, isQueryComparable, isRowLockable, isTableExpression, isView, lock, lockRow, removeChildrenAndResources, removeColumnExpressionsDependencies, removeConstraint, removeDependentView, removeIndex, removeIndexOrTransferOwnership, removeSequence, removeSynonym, removeTrigger, rename, renameColumn, setCheckForeignKeyConstraints, setColumns, setHidden, setOnCommitDrop, setOnCommitTruncate, setTableExpression, unlock, updateRow, updateRows

Methods inherited from class org.h2.schema.SchemaObject

getSchema, getSQL

Methods inherited from class org.h2.engine.DbObject

getComment, getCreateSQLForMeta, getDatabase, getDropSQL, getId, getModificationId, getName, invalidate, isTemporary, isValid, setComment, setModified, setObjectName, setTemporary, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.h2.util.HasSQL

getTraceSQL

Field Detail

statement

private final DataChangeStatement statement

resultOption

private final DataChangeDeltaTable.ResultOption resultOption

expressions

private final Expression[] expressions

Constructor Detail

DataChangeDeltaTable

public DataChangeDeltaTable(Schema schema,
                            SessionLocal session,
                            DataChangeStatement statement,
                            DataChangeDeltaTable.ResultOption resultOption)

Method Detail

collectInsertedFinalRow

public static void collectInsertedFinalRow(SessionLocal session,
                                           Table table,
                                           ResultTarget deltaChangeCollector,
                                           DataChangeDeltaTable.ResultOption deltaChangeCollectionMode,
                                           Row newRow)

Collects final row for INSERT operations.

Parameters:

session - the session

table - the table

deltaChangeCollector - target result

deltaChangeCollectionMode - collection mode

newRow - the inserted row

canGetRowCount

public boolean canGetRowCount(SessionLocal session)

Description copied from class: Table

Check if the row count can be retrieved quickly.

Specified by:

canGetRowCount in class Table

Parameters:

session - the session

Returns:

true if it can

getRowCount

public long getRowCount(SessionLocal session)

Description copied from class: Table

Get the row count for this table.

Specified by:

getRowCount in class Table

Parameters:

session - the session

Returns:

the row count

getRowCountApproximation

public long getRowCountApproximation(SessionLocal session)

Description copied from class: Table

Get the approximated row count for this table.

Specified by:

getRowCountApproximation in class Table

Parameters:

session - the session

Returns:

the approximated row count

getResult

public ResultInterface getResult(SessionLocal session)

Description copied from class: VirtualConstructedTable

Read the rows from the table.

Specified by:

getResult in class VirtualConstructedTable

Parameters:

session - the session

Returns:

the result

getSQL

public java.lang.StringBuilder getSQL(java.lang.StringBuilder builder,
                                      int sqlFlags)

Description copied from interface: HasSQL

Appends the SQL statement of this object to the specified builder.

Specified by:

getSQL in interface HasSQL

Overrides:

getSQL in class SchemaObject

Parameters:

builder - string builder

sqlFlags - formatting flags

Returns:

the specified string builder

isDeterministic

public boolean isDeterministic()

Description copied from class: Table

Check if the table is deterministic.

Specified by:

isDeterministic in class Table

Returns:

true if it is