org.apache.calcite.sql.util

Class SqlShuttle.CallCopyingArgHandler

java.lang.Object

org.apache.calcite.sql.util.SqlShuttle.CallCopyingArgHandler

All Implemented Interfaces:

SqlBasicVisitor.ArgHandler<SqlNode>

Enclosing class:

SqlShuttle

protected class SqlShuttle.CallCopyingArgHandler
extends Object
implements SqlBasicVisitor.ArgHandler<SqlNode>

Implementation of SqlBasicVisitor.ArgHandler that deep-copies SqlCalls and their operands.

Constructor Summary

Constructors

Constructor and Description
SqlShuttle.CallCopyingArgHandler(SqlCall call, boolean alwaysCopy)

Method Summary

Methods

Modifier and Type	Method and Description
SqlNode	result() Returns the result of visiting all children of a call to an operator, then the call itself.
SqlNode	visitChild(SqlVisitor<SqlNode> visitor, SqlNode expr, int i, SqlNode operand) Visits a particular operand of a call, using a given visitor.

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlShuttle.CallCopyingArgHandler

public SqlShuttle.CallCopyingArgHandler(SqlCall call,
                                boolean alwaysCopy)

Method Detail

result

public SqlNode result()

Description copied from interface: SqlBasicVisitor.ArgHandler

Returns the result of visiting all children of a call to an operator, then the call itself.

Typically the result will be the result of the last child visited, or (if R is Boolean) whether all children were visited successfully.

Specified by:

result in interface SqlBasicVisitor.ArgHandler<SqlNode>

visitChild

public SqlNode visitChild(SqlVisitor<SqlNode> visitor,
                 SqlNode expr,
                 int i,
                 SqlNode operand)

Description copied from interface: SqlBasicVisitor.ArgHandler

Visits a particular operand of a call, using a given visitor.

Specified by:

visitChild in interface SqlBasicVisitor.ArgHandler<SqlNode>