Java Doc for SumAggregator.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.SystemAggregator       org.apache.derby.impl.sql.execute.OrderableAggregator          org.apache.derby.impl.sql.execute.SumAggregator All known Subclasses:   org.apache.derby.impl.sql.execute.AvgAggregator, SumAggregator public class SumAggregator extends OrderableAggregator (Code) Aggregator for SUM(). Defers most of its work to OrderableAggregator. author:    jamie Method Summary protected  void accumulate(DataValueDescriptor addend)      public  int getTypeFormatId()      Get the formatID which corresponds to this class. public  ExecAggregator newAggregator()      Method Detail accumulate protected void accumulate(DataValueDescriptor addend) throws StandardException(Code) Accumulate Parameters:   addend - value to be added in exception:   StandardException - on error See Also:   ExecAggregator.accumulate getTypeFormatId public int getTypeFormatId()(Code) Get the formatID which corresponds to this class. the formatID of this class newAggregator public ExecAggregator newAggregator()(Code) ExecAggregator the new aggregator Fields inherited from org.apache.derby.impl.sql.execute.OrderableAggregator protected DataValueDescriptor value(Code)(Java Doc) Methods inherited from org.apache.derby.impl.sql.execute.OrderableAggregator public DataValueDescriptor getResult() throws StandardException(Code)(Java Doc) public void merge(ExecAggregator addend) throws StandardException(Code)(Java Doc) public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code)(Java Doc) public void setup(String aggregateName)(Code)(Java Doc) public void writeExternal(ObjectOutput out) throws IOException(Code)(Java Doc) Methods inherited from org.apache.derby.impl.sql.execute.SystemAggregator public void accumulate(DataValueDescriptor addend, Object ga) throws StandardException(Code)(Java Doc) abstract protected void accumulate(DataValueDescriptor addend) throws StandardException(Code)(Java Doc) public boolean didEliminateNulls()(Code)(Java Doc) public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException(Code)(Java Doc) public void writeExternal(ObjectOutput out) throws IOException(Code)(Java Doc) 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)