org.hibernate.hql.internal.ast.tree
Class AggregateNode

java.lang.Object
  extended by antlr.BaseAST
      extended by antlr.CommonAST
          extended by org.hibernate.hql.internal.ast.tree.Node
              extended by org.hibernate.hql.internal.ast.tree.SqlNode
                  extended by org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode
                      extended by org.hibernate.hql.internal.ast.tree.AbstractSelectExpression
                          extended by org.hibernate.hql.internal.ast.tree.AggregateNode
All Implemented Interfaces:
antlr.collections.AST, Serializable, FunctionNode, InitializeableNode, SelectExpression

public class AggregateNode
extends AbstractSelectExpression
implements SelectExpression, FunctionNode

Represents an aggregate function i.e. min, max, sum, avg.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class antlr.BaseAST
down, right
 
Constructor Summary
AggregateNode()
           
 
Method Summary
 Type getDataType()
          Returns the data type of the select expression.
 Type getFirstArgumentType()
           
 SQLFunction getSQLFunction()
           
 boolean isScalar()
           
 void resolve()
           
 void setScalarColumnText(int i)
          Appends AST nodes that represent the columns after the current AST node.
 
Methods inherited from class org.hibernate.hql.internal.ast.tree.AbstractSelectExpression
getAlias, getFromElement, getScalarColumnIndex, isConstructor, isReturnableEntity, setAlias, setScalarColumn
 
Methods inherited from class org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode
getAliasGenerator, getASTFactory, getSessionFactoryHelper, getWalker, initialize
 
Methods inherited from class org.hibernate.hql.internal.ast.tree.SqlNode
getOriginalText, setDataType, setText
 
Methods inherited from class org.hibernate.hql.internal.ast.tree.Node
getColumn, getFilename, getLine, getRenderText, getTextLength, initialize, initialize
 
Methods inherited from class antlr.CommonAST
getText, getType, initialize, setType
 
Methods inherited from class antlr.BaseAST
addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getFirstChild, getNextSibling, getNumberOfChildren, getTokenNames, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toString, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.hibernate.hql.internal.ast.tree.SelectExpression
getAlias, getFromElement, getScalarColumnIndex, isConstructor, isReturnableEntity, setAlias, setScalarColumn, setText
 

Constructor Detail

AggregateNode

public AggregateNode()
Method Detail

getSQLFunction

public SQLFunction getSQLFunction()
Specified by:
getSQLFunction in interface FunctionNode

resolve

public void resolve()

getFirstArgumentType

public Type getFirstArgumentType()
Specified by:
getFirstArgumentType in interface FunctionNode

getDataType

public Type getDataType()
Description copied from interface: SelectExpression
Returns the data type of the select expression.

Specified by:
getDataType in interface SelectExpression
Overrides:
getDataType in class SqlNode
Returns:
The data type of the select expression.

setScalarColumnText

public void setScalarColumnText(int i)
                         throws antlr.SemanticException
Description copied from interface: SelectExpression
Appends AST nodes that represent the columns after the current AST node. (e.g. 'as col0_O_')

Specified by:
setScalarColumnText in interface SelectExpression
Parameters:
i - The index of the select expression in the projection list.
Throws:
antlr.SemanticException

isScalar

public boolean isScalar()
                 throws antlr.SemanticException
Specified by:
isScalar in interface SelectExpression
Overrides:
isScalar in class AbstractSelectExpression
Throws:
antlr.SemanticException


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