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java.lang.Objectcom.espertech.esper.client.soda.SelectClauseExpression
public class SelectClauseExpression
Part of a select-clause to describe individual select-clause expressions.
Constructor Summary | |
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SelectClauseExpression(Expression expression)
Ctor. |
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SelectClauseExpression(Expression expression,
String optionalAsName)
Ctor. |
Method Summary | |
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String |
getAsName()
Returns the optional "as"-name of the expression, or null if not defined |
Expression |
getExpression()
Returns the selection expression. |
void |
setAsName(String asName)
Sets the optional "as"-name of the expression, or null if not defined |
void |
setExpression(Expression expression)
Sets the selection expression. |
void |
toEPLElement(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 SelectClauseExpression(Expression expression)
expression
- is the selection expressionpublic SelectClauseExpression(Expression expression, String optionalAsName)
expression
- is the selection expressionoptionalAsName
- is the "as"-tag for the expressionMethod Detail |
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public Expression getExpression()
public void setExpression(Expression expression)
expression
- is the selection expressionpublic String getAsName()
public void setAsName(String asName)
asName
- column alias or null for selection expressionpublic void toEPLElement(StringWriter writer)
toEPLElement
in interface SelectClauseElement
writer
- to output to
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