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java.lang.Object org.eigenbase.sql.type.MatchReturnTypeInference
public class MatchReturnTypeInference
Returns the first type that matches a set of given SqlTypeName
s. If
no match could be found, null is returned.
Field Summary | |
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private int |
start
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private SqlTypeName[] |
typeNames
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Constructor Summary | |
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MatchReturnTypeInference(int start)
Returns the type at element start (zero based). |
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MatchReturnTypeInference(int start,
SqlTypeName typeName)
Returns the first type of typeName at or after position start (zero based). |
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MatchReturnTypeInference(int start,
SqlTypeName[] typeNames)
Returns the first type matching any type in typeNames at or after position start (zero based) |
Method Summary | |
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RelDataType |
inferReturnType(SqlOperatorBinding opBinding)
Infers the return type of a call to an SqlOperator . |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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private final int start
private final SqlTypeName[] typeNames
Constructor Detail |
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public MatchReturnTypeInference(int start)
MatchReturnTypeInference(int, SqlTypeName[])
public MatchReturnTypeInference(int start, SqlTypeName typeName)
MatchReturnTypeInference(int, SqlTypeName[])
public MatchReturnTypeInference(int start, SqlTypeName[] typeNames)
Method Detail |
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public RelDataType inferReturnType(SqlOperatorBinding opBinding)
SqlReturnTypeInference
SqlOperator
.
inferReturnType
in interface SqlReturnTypeInference
opBinding
- description of operator binding
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