org.h2.table

类 DerivedTable

java.lang.Object

org.h2.engine.DbObject

org.h2.schema.SchemaObject

org.h2.table.Table

org.h2.table.QueryExpressionTable

org.h2.table.DerivedTable

所有已实现的接口:

HasSQL

public final class DerivedTable
extends QueryExpressionTable

A derived table.

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

构造器概要

构造器

构造器和说明
DerivedTable(SessionLocal session, String name, Column[] columnTemplates, Query query, Query topQuery) Create a derived table out of the given query.

方法概要

限定符和类型	方法和说明
boolean	canDrop() Check if this table can be dropped.
String	getCreateSQL() Construct the CREATE ...
StringBuilder	getSQL(StringBuilder builder, int sqlFlags) Appends the SQL statement of this object to the specified builder.
TableType	getTableType() Get the table type name
Query	getTopQuery()
boolean	isQueryComparable() Check whether the table (or view) contains no columns that prevent index conditions to be used.

从类继承的方法 org.h2.table.QueryExpressionTable

addDependencies, addIndex, addRow, canGetRowCount, canReference, checkSupportAlter, close, createQueryColumnTemplateList, getBestPlanItem, getIndexes, getMaxDataModificationId, getParameterOffset, getQuery, getRowCount, getRowCountApproximation, getScanIndex, getScanIndex, isDeterministic, isInsertable, isView, removeRow, truncate

从类继承的方法 org.h2.table.Table

addConstraint, addDependentView, addSequence, addSynonym, addTrigger, 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, 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

从类继承的方法 org.h2.engine.DbObject

checkRename, getComment, 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

构造器详细资料

DerivedTable

public DerivedTable(SessionLocal session,
                    String name,
                    Column[] columnTemplates,
                    Query query,
                    Query topQuery)

Create a derived table out of the given query.

参数:

session - the session

name - the view name

columnTemplates - column templates, or null

query - the initialized query

topQuery - the top level query

方法详细资料

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 QueryExpressionTable

返回:

true if the table contains no query-comparable column

canDrop

public boolean canDrop()

从类复制的说明: Table

Check if this table can be dropped.

指定者:

canDrop 在类中 Table

返回:

true if it can

getTableType

public TableType getTableType()

从类复制的说明: Table

Get the table type name

指定者:

getTableType 在类中 Table

返回:

the table type name

getTopQuery

public Query getTopQuery()

指定者:

getTopQuery 在类中 QueryExpressionTable

getCreateSQL

public String getCreateSQL()

从类复制的说明: DbObject

Construct the CREATE ... SQL statement for this object.

指定者:

getCreateSQL 在类中 DbObject

返回:

the SQL statement

getSQL

public StringBuilder getSQL(StringBuilder builder,
                            int sqlFlags)

从接口复制的说明: HasSQL

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

指定者:

getSQL 在接口中 HasSQL

覆盖:

getSQL 在类中 SchemaObject

参数:

builder - string builder

sqlFlags - formatting flags

返回:

the specified string builder