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java.lang.Objectnet.esper.client.soda.ExpressionBase
net.esper.eql.spec.SubstitutionParameterExpression
public class SubstitutionParameterExpression
Substitution parameter that represents a node in an expression tree for which to supply a parameter value before statement creation time.
Constructor Summary | |
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SubstitutionParameterExpression(int index)
Ctor. |
Method Summary | |
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Object |
getConstant()
Returns the constant value that the expression represents. |
int |
getIndex()
Returns the index of the parameter. |
boolean |
isSatisfied()
Returns true if the parameter is satisfied, or false if not. |
void |
setConstant(Object constant)
Sets the constant value that the expression represents. |
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 SubstitutionParameterExpression(int index)
index
- is the index of the substitution parameterMethod Detail |
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public void toEQL(StringWriter writer)
Expression
writer
- is the output to usepublic Object getConstant()
public boolean isSatisfied()
public int getIndex()
public void setConstant(Object constant)
constant
- is the value, or null to indicate the null value
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