Package org.yamcs.yarch.streamsql

Class FirstValExpression

java.lang.Object

org.yamcs.yarch.streamsql.Expression

org.yamcs.yarch.streamsql.AggregateExpression

org.yamcs.yarch.streamsql.FirstValExpression

public class FirstValExpression
extends AggregateExpression

Field Summary

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

children, constantValue, hasAggregates, inputDef, type

Constructor Summary

Constructors

Constructor	Description
FirstValExpression(Expression[] args, boolean star)

Method Summary

Modifier and Type	Method	Description
protected void	doBind()
CompiledAggregateExpression	getCompiledAggregate()

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

bind, bindAggregate, compile, fillCode_getValueReturn, isAggregate

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

addFilter, collectAggregates, fillCode_AllInputDefVars, fillCode_Constructor, fillCode_Declarations, fillCode_getValueBody, getColumnName, getConstantValue, getType, isConstant, setColumnName

Methods inherited from class java.lang.Object

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

Constructor Detail

FirstValExpression

public FirstValExpression(Expression[] args,
                          boolean star)
                   throws ParseException

Throws:

ParseException

Method Detail

doBind

protected void doBind()
               throws StreamSqlException

Specified by:

doBind in class Expression

Throws:

StreamSqlException

getCompiledAggregate

public CompiledAggregateExpression getCompiledAggregate()
                                                 throws StreamSqlException

Specified by:

getCompiledAggregate in class AggregateExpression

Throws:

StreamSqlException