Package org.apache.calcite.sql.type
Class CompositeSingleOperandTypeChecker
- java.lang.Object
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- org.apache.calcite.sql.type.CompositeOperandTypeChecker
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- org.apache.calcite.sql.type.CompositeSingleOperandTypeChecker
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- All Implemented Interfaces:
SqlOperandTypeChecker
,SqlSingleOperandTypeChecker
public class CompositeSingleOperandTypeChecker extends CompositeOperandTypeChecker implements SqlSingleOperandTypeChecker
Allows multipleSqlSingleOperandTypeChecker
rules to be combined into one rule.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.calcite.sql.type.CompositeOperandTypeChecker
CompositeOperandTypeChecker.Composition
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Nested classes/interfaces inherited from interface org.apache.calcite.sql.type.SqlOperandTypeChecker
SqlOperandTypeChecker.Consistency
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Field Summary
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Fields inherited from class org.apache.calcite.sql.type.CompositeOperandTypeChecker
allowedRules, composition
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Constructor Summary
Constructors Constructor Description CompositeSingleOperandTypeChecker(CompositeOperandTypeChecker.Composition composition, com.google.common.collect.ImmutableList<? extends SqlSingleOperandTypeChecker> allowedRules, java.lang.String allowedSignatures)
Package private.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method 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()
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Methods inherited from class org.apache.calcite.sql.type.CompositeOperandTypeChecker
checkOperandTypes, getAllowedSignatures, getConsistency, getOperandCountRange, isOptional
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.calcite.sql.type.SqlOperandTypeChecker
checkOperandTypes, getAllowedSignatures, getConsistency, getOperandCountRange, isOptional
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Constructor Detail
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CompositeSingleOperandTypeChecker
CompositeSingleOperandTypeChecker(CompositeOperandTypeChecker.Composition composition, com.google.common.collect.ImmutableList<? extends SqlSingleOperandTypeChecker> allowedRules, java.lang.String allowedSignatures)
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Method Detail
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getRules
public com.google.common.collect.ImmutableList<? extends SqlSingleOperandTypeChecker> getRules()
- Overrides:
getRules
in classCompositeOperandTypeChecker
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checkSingleOperandType
public boolean checkSingleOperandType(SqlCallBinding callBinding, SqlNode node, int iFormalOperand, boolean throwOnFailure)
Description copied from interface:SqlSingleOperandTypeChecker
Checks the type of a single operand against a particular ordinal position within a formal operator signature. Note that the actual ordinal position of the operand being checked may be different from the position of the formal operand.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.- Specified by:
checkSingleOperandType
in interfaceSqlSingleOperandTypeChecker
- Parameters:
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)- Returns:
- whether check succeeded
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