Package org.apache.flink.sql.parser.ddl.connection

Class SqlAlterConnection

java.lang.Object

org.apache.calcite.sql.SqlNode

org.apache.calcite.sql.SqlCall

org.apache.calcite.sql.SqlAlter

org.apache.flink.sql.parser.ddl.SqlAlterObject

org.apache.flink.sql.parser.ddl.connection.SqlAlterConnection

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

SqlAlterConnectionRename, SqlAlterConnectionReset, SqlAlterConnectionSet

public abstract class SqlAlterConnection
extends SqlAlterObject

Abstract class to describe statements like ALTER CONNECTION [IF EXISTS] [[catalogName.] dataBasesName.]connectionName ...

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	ifConnectionExists

Fields inherited from class org.apache.flink.sql.parser.ddl.SqlAlterObject

name

Fields inherited from class org.apache.calcite.sql.SqlNode

EMPTY_ARRAY, pos

Constructor Summary

Constructors

Constructor	Description
SqlAlterConnection(org.apache.calcite.sql.parser.SqlParserPos pos, org.apache.calcite.sql.SqlIdentifier connectionName, boolean ifConnectionExists)

Method Summary

Modifier and Type	Method	Description
boolean	ifConnectionExists()	Whether to ignore the error if the connection doesn't exist.
void	unparseAlterOperation(org.apache.calcite.sql.SqlWriter writer, int leftPrec, int rightPrec)

Methods inherited from class org.apache.flink.sql.parser.ddl.SqlAlterObject

getFullName, getOperator

Methods inherited from class org.apache.calcite.sql.SqlAlter

getScope, setScope, unparse

Methods inherited from class org.apache.calcite.sql.SqlCall

accept, clone, equalsDeep, findValidOptions, getCallSignature, getFunctionQuantifier, getKind, getMonotonicity, getOperandList, isCountStar, isExpanded, operand, operandCount, setOperand, validate

Methods inherited from class org.apache.calcite.sql.SqlNode

clone, clone, cloneArray, equalDeep, equalDeep, equalsDeep, getParserPosition, isA, toList, toList, toSqlString, toSqlString, toSqlString, toString, unparseWithParentheses, validateExpr

Methods inherited from class java.lang.Object

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

Field Detail

ifConnectionExists

protected final boolean ifConnectionExists

Constructor Detail

SqlAlterConnection

public SqlAlterConnection(org.apache.calcite.sql.parser.SqlParserPos pos,
                          org.apache.calcite.sql.SqlIdentifier connectionName,
                          boolean ifConnectionExists)

Method Detail

ifConnectionExists

public boolean ifConnectionExists()

Whether to ignore the error if the connection doesn't exist.

Returns:

true when IF EXISTS is specified.

unparseAlterOperation

public void unparseAlterOperation(org.apache.calcite.sql.SqlWriter writer,
                                  int leftPrec,
                                  int rightPrec)

Specified by:

unparseAlterOperation in class org.apache.calcite.sql.SqlAlter