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java.lang.Objectinetsoft.uql.asset.AggregateHelper
public abstract class AggregateHelper
Helper class for generating aggregate functions.
| Constructor Summary | |
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AggregateHelper()
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| Method Summary | |
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String |
getAggregateExpression(String func,
String col,
String col2)
Get the aggregate expression for calculating the specified function. |
abstract String |
getAggregateFunction(String func)
Get the aggregate function name of the specified function. |
abstract String |
getColumnString(DataRef column)
Get a column string representation for use in SQL query. |
abstract String |
getDBType()
Get the db type. |
| 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 AggregateHelper()
| Method Detail |
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public abstract String getColumnString(DataRef column)
public String getAggregateExpression(String func,
String col,
String col2)
func - function is one of: stddev, stddevp, var, varp, covar,
correl.
public abstract String getDBType()
public abstract String getAggregateFunction(String func)
func - function is one of: stddev, stddevp, var, varp, covar,
correl.
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