Package org.yamcs.yarch.streamsql

Class IsNullExpression

java.lang.Object

org.yamcs.yarch.streamsql.Expression

org.yamcs.yarch.streamsql.IsNullExpression

public class IsNullExpression
extends Expression

Field Summary

Fields inherited from class org.yamcs.yarch.streamsql.Expression

children, constantValue, hasAggregates, inputDef, type

Constructor Summary

Constructors

Constructor	Description
IsNullExpression(Expression expr, IsNullClause isNullClause)

Method Summary

Modifier and Type	Method	Description
protected void	doBind()
void	fillCode_getValueReturn(StringBuilder code)

Methods inherited from class org.yamcs.yarch.streamsql.Expression

addFilter, bind, collectAggregates, collectRequiredInputs, compile, fillCode_Constructor, fillCode_Declarations, fillCode_getValueBody, fillCode_InputDefVars, getColumnName, getConstantValue, getType, isAggregate, isConstant, setArgs, setColumnName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

IsNullExpression

public IsNullExpression(Expression expr,
 IsNullClause isNullClause)

Method Details

doBind

protected void doBind()
               throws StreamSqlException

Specified by:

doBind in class Expression

Throws:

StreamSqlException

fillCode_getValueReturn

public void fillCode_getValueReturn(StringBuilder code)
                             throws StreamSqlException

Specified by:

fillCode_getValueReturn in class Expression

Throws:

StreamSqlException