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java.lang.Objectnet.esper.client.soda.SelectClauseStreamWildcard
public class SelectClauseStreamWildcard
For use in a select clause, this element in a select clause defines that for a given stream we want to select the underlying type. Most often used in joins to select wildcard from one of the joined streams.
For example:
select streamOne.* from StreamOne as streamOne, StreamTwo as streamTwo
There may also be an alias such that the event ends up in
For example:
select streamOne.* from StreamOne as streamOne, StreamTwo as streamTwo
Constructor Summary | |
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SelectClauseStreamWildcard(String streamAliasName,
String optionalColumnAlias)
Ctor. |
Method Summary | |
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String |
getOptionalColumnAlias()
Returns the optional column alias name (e.g. |
String |
getStreamAliasName()
Returns the stream alias name (e.g. |
void |
toEQL(StringWriter writer)
Renders the element in textual representation. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SelectClauseStreamWildcard(String streamAliasName, String optionalColumnAlias)
streamAliasName
- is the alias name assigned to a streamoptionalColumnAlias
- is the name to assign to the column carrying the streams generated events, or
null if the event should not appear in a columnMethod Detail |
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public String getStreamAliasName()
public String getOptionalColumnAlias()
public void toEQL(StringWriter writer)
writer
- to output to
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