Java Doc for BaseExpressionActivation.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » sql » execute » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.impl.sql.execute 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.derby.impl.sql.execute.BaseExpressionActivation

BaseExpressionActivation
abstract public class BaseExpressionActivation (Code)
BaseExpressionActivation Support needed by Expression evaluators (Filters) and by ResultSet materializers (Activations)



Constructor Summary
 BaseExpressionActivation()
    

Method Summary
public static  DataValueDescriptormaxValue(DataValueDescriptor v1, DataValueDescriptor v2, DataValueDescriptor v3, DataValueDescriptor v4, int judgeTypeFormatId, int judgeUserJDBCTypeId)
     Get the maximum value of 4 input values.
public static  DataValueDescriptorminValue(DataValueDescriptor v1, DataValueDescriptor v2, DataValueDescriptor v3, DataValueDescriptor v4, int judgeTypeFormatId, int judgeUserJDBCTypeId)
     Get the minimum value of 4 input values.


Constructor Detail
BaseExpressionActivation
BaseExpressionActivation()(Code)




Method Detail
maxValue
public static DataValueDescriptor maxValue(DataValueDescriptor v1, DataValueDescriptor v2, DataValueDescriptor v3, DataValueDescriptor v4, int judgeTypeFormatId, int judgeUserJDBCTypeId) throws StandardException(Code)
Get the maximum value of 4 input values. If less than 4 values, input NULL. If more than 4 input values, call this multiple times to accumulate results. Also have judge's type as parameter to have a base upon which the comparison is based. An example use is for code generation in bug 3858.
Parameters:
  v1 - 1st value
Parameters:
  v2 - 2nd value
Parameters:
  v3 - 3rd value
Parameters:
  v4 - 4th value
Parameters:
  judgeTypeFormatId - type format id of the judge
Parameters:
  judgeUserJDBCTypeId - JDBC type id if judge is user type;-1 if not user type The maximum value of the 4.



minValue
public static DataValueDescriptor minValue(DataValueDescriptor v1, DataValueDescriptor v2, DataValueDescriptor v3, DataValueDescriptor v4, int judgeTypeFormatId, int judgeUserJDBCTypeId) throws StandardException(Code)
Get the minimum value of 4 input values. If less than 4 values, input NULL. If more than 4 input values, call this multiple times to accumulate results. Also have judge's type as parameter to have a base upon which the comparison is based. An example use is for code generation in bug 3858.
Parameters:
  v1 - 1st value
Parameters:
  v2 - 2nd value
Parameters:
  v3 - 3rd value
Parameters:
  v4 - 4th value
Parameters:
  judgeTypeFormatId - type format id of the judge
Parameters:
  judgeUserJDBCTypeId - JDBC type id if judge is user type;-1 if not user type The minimum value of the 4.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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