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java.lang.Object org.ow2.jonas.lib.ejb21.sql.EjbqlAbstractVisitor org.ow2.jonas.lib.ejb21.sql.EjbqlOrderByVisitor
public class EjbqlOrderByVisitor
Implementation of a visitor that creates a list of org.objectweb.medor.query.api.OrderField to a given ORDER BY clause. Created on Aug 27, 2003
Nested Class Summary |
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Nested classes/interfaces inherited from class org.ow2.jonas.lib.ejb21.sql.EjbqlAbstractVisitor |
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EjbqlAbstractVisitor.IdValue, EjbqlAbstractVisitor.VisitorException |
Constructor Summary | |
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EjbqlOrderByVisitor(ASTEJBQL ejbql,
Map _fields)
Constructor |
Method Summary | |
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org.objectweb.medor.query.api.OrderField[] |
getOrderFields()
get the that was built from visiting the lexical tree |
Object |
visit(ASTCmpPathExpression node,
Object data)
Push corresponding MedorField to the stack. cmp_path_expression ::= path was in initial BNF cmp_path_expression ::= {identification_variable | single_valued_cmr_path_expression}.cmp_field |
Object |
visit(ASTOrderByClause node,
Object data)
Visit child node. |
Object |
visit(ASTOrderByItem node,
Object data)
Visit child node. |
Object |
visit(ASTPath node,
Object data)
Push the Node to the stack |
Methods inherited from class org.ow2.jonas.lib.ejb21.sql.EjbqlAbstractVisitor |
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basePath, endsWith, mergePath, mergePath, splitPath, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public EjbqlOrderByVisitor(ASTEJBQL ejbql, Map _fields) throws Exception
ejbql
- root of the lexical tree of the queryfields
- Map with (name,QueryTreeField) pairs of all the variables appear in the query
Exception
Method Detail |
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public org.objectweb.medor.query.api.OrderField[] getOrderFields()
public Object visit(ASTOrderByClause node, Object data)
visit
in interface EJBQLVisitor
visit
in class EjbqlAbstractVisitor
node
- the node to visitdata
- the current stack
public Object visit(ASTOrderByItem node, Object data)
visit
in interface EJBQLVisitor
visit
in class EjbqlAbstractVisitor
node
- the node to visitdata
- the current stack
public Object visit(ASTCmpPathExpression node, Object data)
visit
in interface EJBQLVisitor
visit
in class EjbqlAbstractVisitor
node
- the node to visitdata
- the current stack
public Object visit(ASTPath node, Object data)
visit
in interface EJBQLVisitor
visit
in class EjbqlAbstractVisitor
node
- the node to visitdata
- the current stack
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