org.hibernate.hql.ast.tree
Class BinaryArithmeticOperatorNode

java.lang.Object
  antlr.BaseAST
      antlr.CommonAST
          org.hibernate.hql.ast.tree.Node
              org.hibernate.hql.ast.tree.SqlNode
                  org.hibernate.hql.ast.tree.HqlSqlWalkerNode
                      org.hibernate.hql.ast.tree.AbstractSelectExpression
                          org.hibernate.hql.ast.tree.BinaryArithmeticOperatorNode

All Implemented Interfaces:

antlr.collections.AST, Serializable, BinaryOperatorNode, DisplayableNode, InitializeableNode, OperatorNode, SelectExpression

public class BinaryArithmeticOperatorNode
extends AbstractSelectExpression
implements BinaryOperatorNode, DisplayableNode

Nodes which represent binary arithmetic operators.

Author:

Gavin King

See Also:

Serialized Form

Field Summary

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

BinaryArithmeticOperatorNode()

Method Summary

Type	getDataType() Figure out the type of the binary expression by looking at the types of the operands.
String	getDisplayText() Returns additional display text for the AST node.
Node	getLeftHandOperand() Retrieves the left-hand operand of the operator.
Node	getRightHandOperand() Retrieves the right-hand operand of the operator.
void	initialize() Called by the tree walker during hql-sql semantic analysis after the operator sub-tree is completely built.
void	setScalarColumnText(int i) Appends AST nodes that represent the columns after the current AST node.

Methods inherited from class org.hibernate.hql.ast.tree.AbstractSelectExpression

getAlias, getFromElement, isConstructor, isReturnableEntity, isScalar, setAlias

Methods inherited from class org.hibernate.hql.ast.tree.HqlSqlWalkerNode

getAliasGenerator, getASTFactory, getSessionFactoryHelper, getWalker, initialize

Methods inherited from class org.hibernate.hql.ast.tree.SqlNode

getOriginalText, setDataType, setText

Methods inherited from class org.hibernate.hql.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.ast.tree.SelectExpression

setText

Constructor Detail

BinaryArithmeticOperatorNode

public BinaryArithmeticOperatorNode()

Method Detail

initialize

public void initialize()
                throws antlr.SemanticException

Description copied from interface: OperatorNode

Called by the tree walker during hql-sql semantic analysis after the operator sub-tree is completely built.

Specified by:

initialize in interface OperatorNode

Throws:

antlr.SemanticException

getDataType

public Type getDataType()

Figure out the type of the binary expression by looking at the types of the operands. Sometimes we don't know both types, if, for example, one is a parameter.

Specified by:

getDataType in interface OperatorNode

Specified by:

getDataType in interface SelectExpression

Overrides:

getDataType in class SqlNode

Returns:

The expression's data type.

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

getLeftHandOperand

public Node getLeftHandOperand()

Retrieves the left-hand operand of the operator.

Specified by:

getLeftHandOperand in interface BinaryOperatorNode

Returns:

The left-hand operand

getRightHandOperand

public Node getRightHandOperand()

Retrieves the right-hand operand of the operator.

Specified by:

getRightHandOperand in interface BinaryOperatorNode

Returns:

The right-hand operand

getDisplayText

public String getDisplayText()

Description copied from interface: DisplayableNode

Returns additional display text for the AST node.

Specified by:

getDisplayText in interface DisplayableNode

Returns:

String - The additional display text.