org.apache.calcite.sql.validate

类 AliasNamespace

java.lang.Object

org.apache.calcite.sql.validate.AliasNamespace

所有已实现的接口:

org.apache.calcite.sql.validate.SqlValidatorNamespace

public class AliasNamespace
extends Object

Namespace for an AS t(c1, c2, ...) clause.

A namespace is necessary only if there is a column list, in order to re-map column names; a relation AS t clause just uses the same namespace as relation.

Compared to Calcite we forward the original StructKind and nullability.

字段概要

字段

限定符和类型	字段和说明
protected org.apache.calcite.sql.SqlCall	call
protected org.apache.calcite.sql.SqlNode	enclosingNode
protected org.apache.calcite.rel.type.RelDataType	rowType
protected org.apache.calcite.rel.type.RelDataType	type
protected SqlValidatorImpl	validator

构造器概要

构造器

限定符	构造器和说明
protected	AliasNamespace(SqlValidatorImpl validator, org.apache.calcite.sql.SqlCall call, org.apache.calcite.sql.SqlNode enclosingNode) Creates an AliasNamespace.

方法概要

限定符和类型	方法和说明
protected org.apache.calcite.rel.type.RelDataType	convertToStruct(org.apache.calcite.rel.type.RelDataType arg0)
boolean	fieldExists(String arg0)
org.apache.calcite.sql.SqlNode	getEnclosingNode()
List<org.apache.calcite.util.Pair<org.apache.calcite.sql.SqlNode,org.apache.calcite.sql.validate.SqlMonotonicity>>	getMonotonicExprs()
org.apache.calcite.sql.validate.SqlMonotonicity	getMonotonicity(String arg0)
org.apache.calcite.sql.SqlNode	getNode()
org.apache.calcite.rel.type.RelDataType	getRowType()
org.apache.calcite.rel.type.RelDataType	getRowTypeSansSystemColumns()
org.apache.calcite.sql.validate.SqlValidatorTable	getTable()
org.apache.calcite.rel.type.RelDataType	getType()
org.apache.calcite.sql.validate.SqlValidator	getValidator()
boolean	isWrapperFor(Class<?> arg0)
org.apache.calcite.sql.validate.SqlValidatorNamespace	lookupChild(String arg0)
void	makeNullable()
org.apache.calcite.sql.validate.SqlValidatorNamespace	resolve()
void	setType(org.apache.calcite.rel.type.RelDataType arg0)
boolean	supportsModality(org.apache.calcite.sql.validate.SqlModality arg0)
protected org.apache.calcite.rel.type.RelDataType	toStruct(org.apache.calcite.rel.type.RelDataType arg0, org.apache.calcite.sql.SqlNode arg1)
String	translate(String name)
<T> T	unwrap(Class<T> arg0)
void	validate(org.apache.calcite.rel.type.RelDataType arg0)
protected org.apache.calcite.rel.type.RelDataType	validateImpl(org.apache.calcite.rel.type.RelDataType targetRowType)

从类继承的方法 java.lang.Object

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

字段详细资料

call

protected final org.apache.calcite.sql.SqlCall call

validator

protected final SqlValidatorImpl validator

rowType

protected org.apache.calcite.rel.type.RelDataType rowType

type

protected org.apache.calcite.rel.type.RelDataType type

enclosingNode

protected final org.apache.calcite.sql.SqlNode enclosingNode

构造器详细资料

AliasNamespace

protected AliasNamespace(SqlValidatorImpl validator,
                         org.apache.calcite.sql.SqlCall call,
                         org.apache.calcite.sql.SqlNode enclosingNode)

Creates an AliasNamespace.

参数:

validator - Validator

call - Call to AS operator

enclosingNode - Enclosing node

方法详细资料

validateImpl

protected org.apache.calcite.rel.type.RelDataType validateImpl(org.apache.calcite.rel.type.RelDataType targetRowType)

getNode

public org.apache.calcite.sql.SqlNode getNode()

translate

public String translate(String name)

getValidator

public org.apache.calcite.sql.validate.SqlValidator getValidator()

指定者:

getValidator 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

validate

public final void validate(org.apache.calcite.rel.type.RelDataType arg0)

指定者:

validate 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

getRowType

public org.apache.calcite.rel.type.RelDataType getRowType()

指定者:

getRowType 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

getRowTypeSansSystemColumns

public org.apache.calcite.rel.type.RelDataType getRowTypeSansSystemColumns()

指定者:

getRowTypeSansSystemColumns 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

getType

public org.apache.calcite.rel.type.RelDataType getType()

指定者:

getType 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

setType

public void setType(org.apache.calcite.rel.type.RelDataType arg0)

指定者:

setType 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

getEnclosingNode

public org.apache.calcite.sql.SqlNode getEnclosingNode()

指定者:

getEnclosingNode 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

getTable

public org.apache.calcite.sql.validate.SqlValidatorTable getTable()

指定者:

getTable 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

lookupChild

public org.apache.calcite.sql.validate.SqlValidatorNamespace lookupChild(String arg0)

指定者:

lookupChild 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

fieldExists

public boolean fieldExists(String arg0)

指定者:

fieldExists 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

getMonotonicExprs

public List<org.apache.calcite.util.Pair<org.apache.calcite.sql.SqlNode,org.apache.calcite.sql.validate.SqlMonotonicity>> getMonotonicExprs()

指定者:

getMonotonicExprs 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

getMonotonicity

public org.apache.calcite.sql.validate.SqlMonotonicity getMonotonicity(String arg0)

指定者:

getMonotonicity 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

makeNullable

public void makeNullable()

指定者:

makeNullable 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

resolve

public org.apache.calcite.sql.validate.SqlValidatorNamespace resolve()

指定者:

resolve 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

supportsModality

public boolean supportsModality(org.apache.calcite.sql.validate.SqlModality arg0)

指定者:

supportsModality 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

unwrap

public <T> T unwrap(Class<T> arg0)

指定者:

unwrap 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

isWrapperFor

public boolean isWrapperFor(Class<?> arg0)

指定者:

isWrapperFor 在接口中 org.apache.calcite.sql.validate.SqlValidatorNamespace

convertToStruct

protected org.apache.calcite.rel.type.RelDataType convertToStruct(org.apache.calcite.rel.type.RelDataType arg0)

toStruct

protected org.apache.calcite.rel.type.RelDataType toStruct(org.apache.calcite.rel.type.RelDataType arg0,
                                                           org.apache.calcite.sql.SqlNode arg1)