TableValueConstructor (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.command.Prepared
- - org.h2.command.query.Query
  - - org.h2.command.query.TableValueConstructor

public class TableValueConstructor
extends Query

Table value constructor.

字段概要
- 从类继承的字段 org.h2.command.Prepared
  create, parameters, prepareAlways, session, sqlStatement, sqlTokens

构造器概要

构造器
构造器和说明

TableValueConstructor(SessionLocal session, ArrayList<ArrayList<Expression>> rows)
Creates new instance of table value constructor.

构造器
构造器和说明
`TableValueConstructor(SessionLocal session, ArrayList<ArrayList<Expression>> rows)` Creates new instance of table value constructor.

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`void`	`addGlobalCondition(Parameter param, int columnId, int comparisonType)` Add a condition to the query.
`boolean`	`allowGlobalConditions()` Check whether adding condition to the query is allowed.
`void`	`fireBeforeSelectTriggers()` Call the before triggers on all tables.
`double`	`getCost()` Calculate the cost to execute this query.
`Expression`	`getIfSingleRow()` If this query is determined as a single-row query, returns a replacement expression.
`String`	`getPlanSQL(int sqlFlags)` Get the SQL statement with the execution plan.
`HashSet<Table>`	`getTables()` Get all tables that are involved in this query.
`static void`	`getValuesSQL(StringBuilder builder, int sqlFlags, ArrayList<ArrayList<Expression>> rows)` Appends the SQL of the values to the specified string builder..
`static void`	`getVisibleResult(SessionLocal session, ResultTarget result, Column[] columns, ArrayList<ArrayList<Expression>> rows)` Appends visible columns of all rows to the specified result.
`void`	`init()` Initialize the query.
`boolean`	`isConstantQuery()` Check if this query will always return the same value and has no side effects.
`boolean`	`isEverything(ExpressionVisitor visitor)` Check if this expression and all sub-expressions can fulfill a criteria.
`boolean`	`isUnion()` Check if this is a UNION query.
`void`	`mapColumns(ColumnResolver resolver, int level)` Map the columns to the given column resolver.
`void`	`prepareExpressions()`
`void`	`preparePlan()`
`protected ResultInterface`	`queryWithoutCache(long limit, ResultTarget target)` Execute the query without checking the cache.
`void`	`setEvaluatable(TableFilter tableFilter, boolean b)` Change the evaluatable flag.
`void`	`setForUpdate(boolean forUpdate)` Set the 'for update' flag.
`Table`	`toTable(String alias, Column[] columnTemplates, ArrayList<Parameter> parameters, boolean forCreateView, Query topQuery)` Converts this query to a table or a view.
`void`	`updateAggregate(SessionLocal s, int stage)` Update all aggregate function values.

从类继承的方法 org.h2.command.query.Query
collectDependencies, disableCache, exists, getColumnCount, getCostAsExpression, getExpressions, getFetch, getMaxDataModificationId, getOffset, getRowDataType, getType, hasOrder, isAnyDistinct, isFetchPercent, isNeverLazy, isQuery, isRandomAccessResult, isReadOnly, isStandardDistinct, isTransactional, isWithTies, prepare, query, query, queryMeta, setDistinctIfPossible, setFetch, setFetchPercent, setNeverLazy, setOffset, setOrder, setRandomAccessResult, setWithTies

从类继承的方法 org.h2.command.Prepared
checkCanceled, checkParameters, getCteCleanups, getCurrentRowNumber, getObjectId, getParameters, getPersistedObjectId, getSession, getSimpleSQL, getSQL, getSQLTokens, isCacheable, isWithParamValues, needRecompile, setCommand, setCteCleanups, setCurrentRowNumber, setParameterList, setPersistedObjectId, setPrepareAlways, setRow, setSession, setSQL, setWithParamValues, toString, update

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

- 构造器详细资料
  - TableValueConstructor
```
public TableValueConstructor(SessionLocal session,
                             ArrayList<ArrayList<Expression>> rows)
```
    Creates new instance of table value constructor.
    
    参数:
    
    session - the session
    
    rows - the rows
- 方法详细资料
  - getVisibleResult
```
public static void getVisibleResult(SessionLocal session,
                                    ResultTarget result,
                                    Column[] columns,
                                    ArrayList<ArrayList<Expression>> rows)
```
    Appends visible columns of all rows to the specified result.
    
    参数:
    
    session - the session
    
    result - the result
    
    columns - the columns
    
    rows - the rows with data
  - getValuesSQL
```
public static void getValuesSQL(StringBuilder builder,
                                int sqlFlags,
                                ArrayList<ArrayList<Expression>> rows)
```
    Appends the SQL of the values to the specified string builder..
    
    参数:
    
    builder - string builder
    
    sqlFlags - formatting flags
    
    rows - the values
  - isUnion
```
public boolean isUnion()
```
    从类复制的说明: Query
    
    Check if this is a UNION query.
    
    指定者:
    
    isUnion 在类中 Query
    
    返回:
    
    true if this is a UNION query
  - queryWithoutCache
```
protected ResultInterface queryWithoutCache(long limit,
                                            ResultTarget target)
```
    从类复制的说明: Query
    
    Execute the query without checking the cache. If a target is specified, the results are written to it, and the method returns null. If no target is specified, a new LocalResult is created and returned.
    
    指定者:
    
    queryWithoutCache 在类中 Query
    
    参数:
    
    limit - the limit as specified in the JDBC method call
    
    target - the target to write results to
    
    返回:
    
    the result
  - init
```
public void init()
```
    从类复制的说明: Query
    
    Initialize the query.
    
    指定者:
    
    init 在类中 Query
  - prepareExpressions
```
public void prepareExpressions()
```
    指定者:
    
    prepareExpressions 在类中 Query
  - preparePlan
```
public void preparePlan()
```
    指定者:
    
    preparePlan 在类中 Query
  - getCost
```
public double getCost()
```
    从类复制的说明: Query
    
    Calculate the cost to execute this query.
    
    指定者:
    
    getCost 在类中 Query
    
    返回:
    
    the cost
  - getTables
```
public HashSet<Table> getTables()
```
    从类复制的说明: Query
    
    Get all tables that are involved in this query.
    
    指定者:
    
    getTables 在类中 Query
    
    返回:
    
    the set of tables
  - setForUpdate
```
public void setForUpdate(boolean forUpdate)
```
    从类复制的说明: Query
    
    Set the 'for update' flag.
    
    指定者:
    
    setForUpdate 在类中 Query
    
    参数:
    
    forUpdate - the new setting
  - mapColumns
```
public void mapColumns(ColumnResolver resolver,
                       int level)
```
    从类复制的说明: Query
    
    Map the columns to the given column resolver.
    
    指定者:
    
    mapColumns 在类中 Query
    
    参数:
    
    resolver - the resolver
    
    level - the subquery level (0 is the top level query, 1 is the first subquery level)
  - setEvaluatable
```
public void setEvaluatable(TableFilter tableFilter,
                           boolean b)
```
    从类复制的说明: Query
    
    Change the evaluatable flag. This is used when building the execution plan.
    
    指定者:
    
    setEvaluatable 在类中 Query
    
    参数:
    
    tableFilter - the table filter
    
    b - the new value
  - addGlobalCondition
```
public void addGlobalCondition(Parameter param,
                               int columnId,
                               int comparisonType)
```
    从类复制的说明: Query
    
    Add a condition to the query. This is used for views.
    
    指定者:
    
    addGlobalCondition 在类中 Query
    
    参数:
    
    param - the parameter
    
    columnId - the column index (0 meaning the first column)
    
    comparisonType - the comparison type
  - allowGlobalConditions
```
public boolean allowGlobalConditions()
```
    从类复制的说明: Query
    
    Check whether adding condition to the query is allowed. This is not allowed for views that have an order by and a limit, as it would affect the returned results.
    
    指定者:
    
    allowGlobalConditions 在类中 Query
    
    返回:
    
    true if adding global conditions is allowed
  - isEverything
```
public boolean isEverything(ExpressionVisitor visitor)
```
    从类复制的说明: Query
    
    Check if this expression and all sub-expressions can fulfill a criteria. If any part returns false, the result is false.
    
    指定者:
    
    isEverything 在类中 Query
    
    参数:
    
    visitor - the visitor
    
    返回:
    
    if the criteria can be fulfilled
  - updateAggregate
```
public void updateAggregate(SessionLocal s,
                            int stage)
```
    从类复制的说明: Query
    
    Update all aggregate function values.
    
    指定者:
    
    updateAggregate 在类中 Query
    
    参数:
    
    s - the session
    
    stage - select stage
  - fireBeforeSelectTriggers
```
public void fireBeforeSelectTriggers()
```
    从类复制的说明: Query
    
    Call the before triggers on all tables.
    
    指定者:
    
    fireBeforeSelectTriggers 在类中 Query
  - getPlanSQL
```
public String getPlanSQL(int sqlFlags)
```
    从类复制的说明: Prepared
    
    Get the SQL statement with the execution plan.
    
    覆盖:
    
    getPlanSQL 在类中 Prepared
    
    参数:
    
    sqlFlags - formatting flags
    
    返回:
    
    the execution plan
  - toTable
```
public Table toTable(String alias,
                     Column[] columnTemplates,
                     ArrayList<Parameter> parameters,
                     boolean forCreateView,
                     Query topQuery)
```
    从类复制的说明: Query
    
    Converts this query to a table or a view.
    
    覆盖:
    
    toTable 在类中 Query
    
    参数:
    
    alias - alias name for the view
    
    columnTemplates - column templates, or null
    
    parameters - the parameters
    
    forCreateView - if true, a system session will be used for the view
    
    topQuery - the top level query
    
    返回:
    
    the table or the view
  - isConstantQuery
```
public boolean isConstantQuery()
```
    从类复制的说明: Query
    
    Check if this query will always return the same value and has no side effects.
    
    覆盖:
    
    isConstantQuery 在类中 Query
    
    返回:
    
    if this query will always return the same value and has no side effects.
  - getIfSingleRow
```
public Expression getIfSingleRow()
```
    从类复制的说明: Query
    
    If this query is determined as a single-row query, returns a replacement expression.
    
    覆盖:
    
    getIfSingleRow 在类中 Query
    
    返回:
    
    the expression, or null

类 TableValueConstructor

字段概要

从类继承的字段 org.h2.command.Prepared

构造器概要

方法概要

从类继承的方法 org.h2.command.query.Query

从类继承的方法 org.h2.command.Prepared

从类继承的方法 java.lang.Object

构造器详细资料

TableValueConstructor

方法详细资料

getVisibleResult

getValuesSQL

isUnion

queryWithoutCache

init

prepareExpressions

preparePlan

getCost

getTables

setForUpdate

mapColumns

setEvaluatable

addGlobalCondition

allowGlobalConditions

isEverything

updateAggregate

fireBeforeSelectTriggers

getPlanSQL

toTable

isConstantQuery

getIfSingleRow