Package org.apache.calcite.sql.util

Class SqlShuttle.CallCopyingArgHandler

java.lang.Object

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

All Implemented Interfaces:

SqlBasicVisitor.ArgHandler<@Nullable SqlNode>

Enclosing class:

SqlShuttle

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

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

Constructor Summary

Constructors

Constructor	Description
CallCopyingArgHandler(SqlCall call, boolean alwaysCopy)

Method Summary

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

CallCopyingArgHandler

public CallCopyingArgHandler(SqlCall call,
 boolean alwaysCopy)

Method Details

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<@Nullable SqlNode>

visitChild

public @Nullable SqlNode visitChild(SqlVisitor<@Nullable SqlNode> visitor,
 SqlNode expr,
 int i,
 @Nullable 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<@Nullable SqlNode>