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java.lang.Objectnet.esper.client.soda.ExpressionBase
net.esper.client.soda.CaseWhenThenExpression
public class CaseWhenThenExpression
Case expression that act as a when-then-else.
Constructor Summary | |
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CaseWhenThenExpression()
Ctor - for use to create an expression tree, without child expression. |
Method Summary | |
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CaseWhenThenExpression |
add(Expression when,
Expression then)
Adds a when-then pair of expressions. |
CaseWhenThenExpression |
setElse(Expression elseExpr)
Sets the expression to provide a value when no when-condition matches. |
void |
toEQL(StringWriter writer)
Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax. |
Methods inherited from class net.esper.client.soda.ExpressionBase |
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addChild, getChildren |
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 CaseWhenThenExpression()
Use add methods to add child expressions to acts upon.
Method Detail |
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public CaseWhenThenExpression add(Expression when, Expression then)
when
- providings conditions to evaluatethen
- provides the result when a condition evaluates to true
public CaseWhenThenExpression setElse(Expression elseExpr)
elseExpr
- expression providing default result
public void toEQL(StringWriter writer)
Expression
writer
- is the output to use
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