org.apache.expreval.expr.var
Class KeyColumn

java.lang.Object
  org.apache.expreval.expr.var.GenericColumn<StringValue>
      org.apache.expreval.expr.var.KeyColumn

All Implemented Interfaces:

Serializable, GenericValue

public class KeyColumn
extends GenericColumn<StringValue>

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.apache.expreval.expr.node.GenericValue

serialVersionUID

Constructor Summary

KeyColumn(ColumnAttrib attrib)

Method Summary

Object

getValue(HConnectionImpl conn, Object object)

Methods inherited from class org.apache.expreval.expr.var.GenericColumn

applyResultToAggregateValue, asString, getColumnAttrib, getExpressionContext, getFieldType, getFilter, getOptimizedValue, getVariableName, hasAColumnReference, initAggregateValue, isAColumnReference, isAConstant, isAnAggregateValue, isDefaultKeyword, reset, setExpressionContext, validateTypes

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyColumn

public KeyColumn(ColumnAttrib attrib)

Method Detail

getValue

public Object getValue(HConnectionImpl conn,
                       Object object)
                throws HBqlException,
                       ResultMissingColumnException,
                       NullColumnValueException

Throws:

HBqlException

ResultMissingColumnException

NullColumnValueException