QueryExpressionTable (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.engine.DbObject
- - org.h2.schema.SchemaObject
  - - org.h2.table.Table
    - - org.h2.table.QueryExpressionTable

所有已实现的接口:

HasSQL

直接已知子类:

DerivedTable, TableView
```
public abstract class QueryExpressionTable
extends Table
```
A derived table or view.

字段概要
- 从类继承的字段 org.h2.table.Table
  columns, compareMode, EXCLUSIVE_LOCK, isHidden, READ_LOCK, TYPE_CACHED, TYPE_MEMORY, WRITE_LOCK
- 从类继承的字段 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
- 从接口继承的字段 org.h2.util.HasSQL
  ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

方法概要

所有方法静态方法实例方法抽象方法具体方法
限定符和类型	方法和说明
`void`	`addDependencies(HashSet<DbObject> dependencies)` Add all objects that this table depends on to the hash set.
`Index`	`addIndex(SessionLocal session, String indexName, int indexId, IndexColumn[] cols, int uniqueColumnCount, IndexType indexType, boolean create, String indexComment)` Create an index for this table
`void`	`addRow(SessionLocal session, Row row)` Add a row to the table and all indexes.
`boolean`	`canGetRowCount(SessionLocal session)` Check if the row count can be retrieved quickly.
`boolean`	`canReference()` Check if this table can be referenced.
`void`	`checkSupportAlter()` Check if this table supports ALTER TABLE.
`void`	`close(SessionLocal session)` Close the table object and flush changes.
`static List<Column>`	`createQueryColumnTemplateList(String[] cols, Query theQuery, String[] querySQLOutput)` Creates a list of column templates from a query (usually from WITH query, but could be any query)
`PlanItem`	`getBestPlanItem(SessionLocal session, int[] masks, TableFilter[] filters, int filter, SortOrder sortOrder, AllColumnsForPlan allColumnsSet)` Get the best plan for the given search mask.
`ArrayList<Index>`	`getIndexes()` Get all indexes for this table.
`long`	`getMaxDataModificationId()` Get the last data modification id.
`int`	`getParameterOffset(ArrayList<Parameter> additionalParameters)` Get the index of the first parameter.
`Query`	`getQuery()`
`long`	`getRowCount(SessionLocal session)` Get the row count for this table.
`long`	`getRowCountApproximation(SessionLocal session)` Get the approximated row count for this table.
`Index`	`getScanIndex(SessionLocal session)` Get the scan index to iterate through all rows.
`Index`	`getScanIndex(SessionLocal session, int[] masks, TableFilter[] filters, int filter, SortOrder sortOrder, AllColumnsForPlan allColumnsSet)` Get the scan index for this table.
`abstract Query`	`getTopQuery()`
`boolean`	`isDeterministic()` Check if the table is deterministic.
`boolean`	`isInsertable()` Returns whether this table is insertable.
`boolean`	`isQueryComparable()` Check whether the table (or view) contains no columns that prevent index conditions to be used.
`boolean`	`isView()`
`void`	`removeRow(SessionLocal session, Row row)` Remove a row from the table and all indexes.
`long`	`truncate(SessionLocal session)` Remove all rows from the table and indexes.

从类继承的方法 org.h2.table.Table
addConstraint, addDependentView, addSequence, addSynonym, addTrigger, canDrop, canTruncate, checkDeadlock, checkWritingAllowed, compareValues, convertInsertRow, convertUpdateRow, createRow, doesColumnExist, dropMultipleColumnsConstraintsAndIndexes, findColumn, findPrimaryKey, fire, fireAfterRow, fireBeforeRow, fireRow, getCheckForeignKeyConstraints, getChildren, getColumn, getColumn, getColumn, getColumns, getCompareMode, getConstraints, getDependentViews, getDiskSpaceUsed, getIdentityColumn, getIndex, getIndexForColumn, getMainIndexColumn, getNullRow, getOnCommitDrop, getOnCommitTruncate, getPrimaryKey, getRow, getRowFactory, getRowIdColumn, getSQLTableType, getTableType, getTemplateRow, getTemplateSimpleRow, getTriggers, getType, hasSelectTrigger, isGlobalTemporary, isHidden, isLockedExclusively, isLockedExclusivelyBy, isPersistData, isPersistIndexes, isRowLockable, isTableExpression, lock, lockRow, removeChildrenAndResources, removeColumnExpressionsDependencies, removeConstraint, removeDependentView, removeIndex, removeIndexOrTransferOwnership, removeSequence, removeSynonym, removeTrigger, rename, renameColumn, setCheckForeignKeyConstraints, setColumns, setHidden, setOnCommitDrop, setOnCommitTruncate, setTableExpression, unlock, updateRow, updateRows

从类继承的方法 org.h2.schema.SchemaObject
getSchema, getSQL, getSQL

从类继承的方法 org.h2.engine.DbObject
checkRename, getComment, getCreateSQL, getCreateSQLForCopy, getCreateSQLForMeta, getDatabase, getDropSQL, getId, getModificationId, getName, invalidate, isTemporary, isValid, setComment, setModified, setObjectName, setTemporary, toString

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.h2.util.HasSQL
getTraceSQL

- 方法详细资料
  - createQueryColumnTemplateList
```
public static List<Column> createQueryColumnTemplateList(String[] cols,
                                                         Query theQuery,
                                                         String[] querySQLOutput)
```
    Creates a list of column templates from a query (usually from WITH query, but could be any query)
    
    参数:
    
    cols - - an optional list of column names (can be specified by WITH clause overriding usual select names)
    
    theQuery - - the query object we want the column list for
    
    querySQLOutput - - array of length 1 to receive extra 'output' field in addition to return value - containing the SQL query of the Query object
    
    返回:
    
    a list of column object returned by withQuery
  - getQuery
```
public final Query getQuery()
```
  - getTopQuery
```
public abstract Query getTopQuery()
```
  - close
```
public final void close(SessionLocal session)
```
    从类复制的说明: Table
    
    Close the table object and flush changes.
    
    指定者:
    
    close 在类中 Table
    
    参数:
    
    session - the session
  - addIndex
```
public final Index addIndex(SessionLocal session,
                            String indexName,
                            int indexId,
                            IndexColumn[] cols,
                            int uniqueColumnCount,
                            IndexType indexType,
                            boolean create,
                            String indexComment)
```
    从类复制的说明: Table
    
    Create an index for this table
    
    指定者:
    
    addIndex 在类中 Table
    
    参数:
    
    session - the session
    
    indexName - the name of the index
    
    indexId - the id
    
    cols - the index columns
    
    uniqueColumnCount - the count of unique columns
    
    indexType - the index type
    
    create - whether this is a new index
    
    indexComment - the comment
    
    返回:
    
    the index
  - isView
```
public final boolean isView()
```
    覆盖:
    
    isView 在类中 Table
  - getBestPlanItem
```
public final PlanItem getBestPlanItem(SessionLocal session,
                                      int[] masks,
                                      TableFilter[] filters,
                                      int filter,
                                      SortOrder sortOrder,
                                      AllColumnsForPlan allColumnsSet)
```
    从类复制的说明: Table
    
    Get the best plan for the given search mask.
    
    覆盖:
    
    getBestPlanItem 在类中 Table
    
    参数:
    
    session - the session
    
    masks - per-column comparison bit masks, null means 'always false', see constants in IndexCondition
    
    filters - all joined table filters
    
    filter - the current table filter index
    
    sortOrder - the sort order
    
    allColumnsSet - the set of all columns
    
    返回:
    
    the plan item
  - isQueryComparable
```
public boolean isQueryComparable()
```
    从类复制的说明: Table
    
    Check whether the table (or view) contains no columns that prevent index conditions to be used. For example, a view that contains the ROWNUM() pseudo-column prevents this.
    
    覆盖:
    
    isQueryComparable 在类中 Table
    
    返回:
    
    true if the table contains no query-comparable column
  - isInsertable
```
public final boolean isInsertable()
```
    从类复制的说明: Table
    
    Returns whether this table is insertable.
    
    覆盖:
    
    isInsertable 在类中 Table
    
    返回:
    
    whether this table is insertable
  - removeRow
```
public final void removeRow(SessionLocal session,
                            Row row)
```
    从类复制的说明: Table
    
    Remove a row from the table and all indexes.
    
    指定者:
    
    removeRow 在类中 Table
    
    参数:
    
    session - the session
    
    row - the row
  - addRow
```
public final void addRow(SessionLocal session,
                         Row row)
```
    从类复制的说明: Table
    
    Add a row to the table and all indexes.
    
    指定者:
    
    addRow 在类中 Table
    
    参数:
    
    session - the session
    
    row - the row
  - checkSupportAlter
```
public final void checkSupportAlter()
```
    从类复制的说明: Table
    
    Check if this table supports ALTER TABLE.
    
    指定者:
    
    checkSupportAlter 在类中 Table
  - truncate
```
public final long truncate(SessionLocal session)
```
    从类复制的说明: Table
    
    Remove all rows from the table and indexes.
    
    指定者:
    
    truncate 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    number of removed rows, possibly including uncommitted rows
  - getRowCount
```
public final long getRowCount(SessionLocal session)
```
    从类复制的说明: Table
    
    Get the row count for this table.
    
    指定者:
    
    getRowCount 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    the row count
  - canGetRowCount
```
public final boolean canGetRowCount(SessionLocal session)
```
    从类复制的说明: Table
    
    Check if the row count can be retrieved quickly.
    
    指定者:
    
    canGetRowCount 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    true if it can
  - getRowCountApproximation
```
public final long getRowCountApproximation(SessionLocal session)
```
    从类复制的说明: Table
    
    Get the approximated row count for this table.
    
    指定者:
    
    getRowCountApproximation 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    the approximated row count
  - getParameterOffset
```
public final int getParameterOffset(ArrayList<Parameter> additionalParameters)
```
    Get the index of the first parameter.
    
    参数:
    
    additionalParameters - additional parameters
    
    返回:
    
    the index of the first parameter
  - canReference
```
public final boolean canReference()
```
    从类复制的说明: Table
    
    Check if this table can be referenced.
    
    覆盖:
    
    canReference 在类中 Table
    
    返回:
    
    true if it can
  - getIndexes
```
public final ArrayList<Index> getIndexes()
```
    从类复制的说明: Table
    
    Get all indexes for this table.
    
    指定者:
    
    getIndexes 在类中 Table
    
    返回:
    
    the list of indexes
  - getMaxDataModificationId
```
public long getMaxDataModificationId()
```
    从类复制的说明: Table
    
    Get the last data modification id.
    
    指定者:
    
    getMaxDataModificationId 在类中 Table
    
    返回:
    
    the modification id
  - getScanIndex
```
public final Index getScanIndex(SessionLocal session)
```
    从类复制的说明: Table
    
    Get the scan index to iterate through all rows.
    
    指定者:
    
    getScanIndex 在类中 Table
    
    参数:
    
    session - the session
    
    返回:
    
    the index
  - getScanIndex
```
public Index getScanIndex(SessionLocal session,
                          int[] masks,
                          TableFilter[] filters,
                          int filter,
                          SortOrder sortOrder,
                          AllColumnsForPlan allColumnsSet)
```
    从类复制的说明: Table
    
    Get the scan index for this table.
    
    覆盖:
    
    getScanIndex 在类中 Table
    
    参数:
    
    session - the session
    
    masks - the search mask
    
    filters - the table filters
    
    filter - the filter index
    
    sortOrder - the sort order
    
    allColumnsSet - all columns
    
    返回:
    
    the scan index
  - isDeterministic
```
public boolean isDeterministic()
```
    从类复制的说明: Table
    
    Check if the table is deterministic.
    
    指定者:
    
    isDeterministic 在类中 Table
    
    返回:
    
    true if it is
  - addDependencies
```
public final void addDependencies(HashSet<DbObject> dependencies)
```
    从类复制的说明: Table
    
    Add all objects that this table depends on to the hash set.
    
    覆盖:
    
    addDependencies 在类中 Table
    
    参数:
    
    dependencies - the current set of dependencies

类 QueryExpressionTable

字段概要

从类继承的字段 org.h2.table.Table

从类继承的字段 org.h2.engine.DbObject

从接口继承的字段 org.h2.util.HasSQL

方法概要

从类继承的方法 org.h2.table.Table

从类继承的方法 org.h2.schema.SchemaObject

从类继承的方法 org.h2.engine.DbObject

从类继承的方法 java.lang.Object

从接口继承的方法 org.h2.util.HasSQL

方法详细资料

createQueryColumnTemplateList

getQuery

getTopQuery

close

addIndex

isView

getBestPlanItem

isQueryComparable

isInsertable

removeRow

addRow

checkSupportAlter

truncate

getRowCount

canGetRowCount

getRowCountApproximation

getParameterOffset

canReference

getIndexes

getMaxDataModificationId

getScanIndex

getScanIndex

isDeterministic

addDependencies