public class CompositeSingleOperandTypeChecker extends CompositeOperandTypeChecker implements SqlSingleOperandTypeChecker
SqlSingleOperandTypeChecker
rules to be
combined into one rule.CompositeOperandTypeChecker.Composition
SqlOperandTypeChecker.Consistency
allowedRules, composition
Constructor and Description |
---|
CompositeSingleOperandTypeChecker(CompositeOperandTypeChecker.Composition composition,
com.google.common.collect.ImmutableList<? extends SqlSingleOperandTypeChecker> allowedRules,
java.lang.String allowedSignatures)
Package private.
|
Modifier and Type | Method and Description |
---|---|
boolean |
checkSingleOperandType(SqlCallBinding callBinding,
SqlNode node,
int iFormalOperand,
boolean throwOnFailure)
Checks the type of a single operand against a particular ordinal position
within a formal operator signature.
|
com.google.common.collect.ImmutableList<? extends SqlSingleOperandTypeChecker> |
getRules() |
checkOperandTypes, getAllowedSignatures, getConsistency, getOperandCountRange, isOptional
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
checkOperandTypes, getAllowedSignatures, getConsistency, getOperandCountRange, isOptional
CompositeSingleOperandTypeChecker(CompositeOperandTypeChecker.Composition composition, com.google.common.collect.ImmutableList<? extends SqlSingleOperandTypeChecker> allowedRules, java.lang.String allowedSignatures)
public com.google.common.collect.ImmutableList<? extends SqlSingleOperandTypeChecker> getRules()
getRules
in class CompositeOperandTypeChecker
public boolean checkSingleOperandType(SqlCallBinding callBinding, SqlNode node, int iFormalOperand, boolean throwOnFailure)
SqlSingleOperandTypeChecker
For example, when validating the actual call
C(X, Y, Z)
the strategy for validating the operand Z might involve checking its
type against the formal signature OP(W). In this case,
iFormalOperand
would be zero, even though the position of Z
within call C is two.
checkSingleOperandType
in interface SqlSingleOperandTypeChecker
callBinding
- description of the call being checked; this is only
provided for context when throwing an exception; the
implementation should NOT examine the
operands of the call as part of the checknode
- the actual operand to be checkediFormalOperand
- the 0-based formal operand ordinalthrowOnFailure
- whether to throw an exception if check fails
(otherwise returns false in that case)Copyright © 2012–2019 The Apache Software Foundation. All rights reserved.