| Methods Summary |
|---|
| public void | addParameter(java.lang.String parameterName)INTERNAL
Add a parameter.
if (!parameterNames.contains(parameterName)){
parameterNames.add(parameterName);
}
|
| public java.lang.Class | classForSchemaName(java.lang.String schemaName, oracle.toplink.essentials.internal.parsing.GenerationContext context)INTERNAL
Answer the class associated with the provided schema name
ClassDescriptor descriptor = context.getSession().getDescriptorForAlias(schemaName);
if (descriptor == null) {
throw EJBQLException.unknownAbstractSchemaType(getQueryInfo(), schemaName);
}
Class theClass = descriptor.getJavaClass();
if (theClass == null) {
throw EJBQLException.resolutionClassNotFoundException(getQueryInfo(), schemaName);
}
return theClass;
|
| public void | defineParameterType(java.lang.String parameterName, java.lang.Object parameterType, int line, int column)INTERNAL
Defines the type of the parameter with the specified name.
if (parameterTypes.containsKey(parameterName)) {
// existing entry
Object oldType = parameterTypes.get(parameterName);
if (typeHelper.isAssignableFrom(oldType, parameterType)) {
// OK
} else if (typeHelper.isAssignableFrom(parameterType, oldType)) {
// new parameter type is more general
parameterTypes.put(parameterName, parameterType);
} else {
// error case old usage and new usage do not match type
throw EJBQLException.invalidMultipleUseOfSameParameter(
getQueryInfo(), line, column, parameterName,
typeHelper.getTypeName(oldType),
typeHelper.getTypeName(parameterType));
}
} else {
// new entry
parameterTypes.put(parameterName, parameterType);
}
|
| public void | enterScope()INTERNAL
Enters a new scope. This initializes the set of outer scope variables.
currentScope++;
resetOuterScopeVariables();
|
| public java.lang.String | getBaseVariable()
return baseVariable;
|
| public java.util.List | getFetchJoins(java.lang.String variableName)Returns alist of FETCH JOIN nodes for the specified attached to the
specified variable.
return (List)fetchJoins.get(variableName);
|
| public oracle.toplink.essentials.internal.parsing.NodeFactory | getNodeFactory()
return nodeFactory;
|
| public java.util.Set | getOuterScopeVariables()INTERNAL
Returns the set of outer scope variables.
return outerScopeVariables;
|
| public java.util.List | getParameterNames()INTERNAL
Return the parameter names.
return parameterNames;
|
| public java.lang.Object | getParameterType(java.lang.String parameter)INTERNAL
Return the type of the specified parameter.
return parameterTypes.get(parameter);
|
| public java.lang.String | getQueryInfo()
return queryInfo;
|
| public oracle.toplink.essentials.internal.parsing.TypeHelper | getTypeHelper()INTERNAL
Returns the type helper stored in this context.
return typeHelper;
|
| public java.util.Set | getUnusedVariables()Returns s set of variables that are declared in the current scope,
but not used in the query.
Set unused = new HashSet();
for (Iterator i = variableDecls.entrySet().iterator(); i.hasNext();) {
Map.Entry entry = (Map.Entry)i.next();
String variable = (String)entry.getKey();
VariableDecl decl = (VariableDecl)entry.getValue();
if ((decl.scope == currentScope) && !decl.used) {
unused.add(variable);
}
}
return unused;
|
| public java.lang.String | getVariableNameForClass(java.lang.Class theClass, oracle.toplink.essentials.internal.parsing.GenerationContext context)INTERNAL
getVariableNameForClass():
Answer the name mapped to the specified class. Answer null if none found.
SELECT OBJECT (emp) FROM Employee emp
getVariableNameForClass(Employee.class) => "emp"
for (Iterator i = variableDecls.entrySet().iterator(); i.hasNext(); ) {
Map.Entry entry = (Map.Entry)i.next();
String nextVariable = (String)entry.getKey();
VariableDecl decl = (VariableDecl)entry.getValue();
if ((decl.schema != null) &&
(theClass == this.classForSchemaName(decl.schema, context))) {
return nextVariable;
}
}
return null;
|
| public boolean | hasMoreThanOneAliasInFrom()
Map typeNamesToVariables = new HashMap();
for (Iterator i = variableDecls.entrySet().iterator(); i.hasNext(); ) {
Map.Entry entry = (Map.Entry)i.next();
String variable = (String)entry.getKey();
VariableDecl decl = (VariableDecl)entry.getValue();
if (decl.isRangeVariable) {
typeNamesToVariables.put(decl.schema, variable);
}
}
return typeNamesToVariables.size() > 1;
|
| public boolean | hasMoreThanOneVariablePerType()
Map typeNamesToVariables = new HashMap();
int nrOfRangeVariables = 0;
//Map the Aliases to the variable names, then check the count
for (Iterator i = variableDecls.entrySet().iterator(); i.hasNext(); ) {
Map.Entry entry = (Map.Entry)i.next();
String variable = (String)entry.getKey();
VariableDecl decl = (VariableDecl)entry.getValue();
if (decl.isRangeVariable) {
nrOfRangeVariables++;
typeNamesToVariables.put(decl.schema, variable);
}
}
return typeNamesToVariables.size() != nrOfRangeVariables;
|
| public boolean | hasParameters()INTERNAL
Returns true if the query has at least one parameter.
return !parameterNames.isEmpty();
|
| public boolean | isDeclaredInOuterScope(java.lang.String variable)INTERNAL
Returns true if the specified string denotes a variable declared in an
outer scope.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
return (decl != null) ? (decl.scope < currentScope) : false;
|
| public boolean | isRangeVariable(java.lang.String variable)
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
return (decl != null) && decl.isRangeVariable;
|
| public boolean | isVariable(java.lang.String variable)INTERNAL
Returns true if the specified string denotes a variable.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
return decl != null;
|
| public void | leaveScope()INTERNAL
Leaves the current scope.
currentScope--;
|
| public oracle.toplink.essentials.internal.parsing.Node | pathForVariable(java.lang.String variable)INTERNAL
Returns the path if the specified string denotes a join or collection
member variable.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
return (decl != null) ? decl.path : null;
|
| public void | registerFetchJoin(java.lang.String variableName, oracle.toplink.essentials.internal.parsing.Node node)Associate the given variableName with the given node representating a
JOIN FETCH node.
List joins = (List)fetchJoins.get(variableName);
if (joins == null) {
joins = new ArrayList();
fetchJoins.put(variableName, joins);
}
joins.add(node);
|
| public void | registerJoinVariable(java.lang.String variable, oracle.toplink.essentials.internal.parsing.Node path, int line, int column)INTERNAL
Associate the given path with the given variable.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
if (decl == null) {
decl = new VariableDecl(variable, path);
variableDecls.put(variable, decl);
} else {
String text = decl.isRangeVariable ? decl.schema : decl.path.getAsString();
throw EJBQLException.multipleVariableDeclaration(
getQueryInfo(), line, column, variable, text);
}
|
| public void | registerOuterScopeVariable(java.lang.String variable)INTERNAL
Adds the specified variable to the set of outer scope variables.
outerScopeVariables.add(variable);
|
| public void | registerSchema(java.lang.String variable, java.lang.String schema, int line, int column)INTERNAL
Associate the given schema with the given variable.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
if (decl == null) {
decl = new VariableDecl(variable, schema);
variableDecls.put(variable, decl);
} else {
String text = decl.isRangeVariable ? decl.schema : decl.path.getAsString();
throw EJBQLException.multipleVariableDeclaration(
getQueryInfo(), line, column, variable, text);
}
|
| public void | resetOuterScopeVariables()INTERNAL
Resets the set of outer scope variables.
outerScopeVariables = new HashSet();
|
| public void | resetOuterScopeVariables(java.util.Set variables)INTERNAL
Resets the set of outer scope variables.
outerScopeVariables = variables;
|
| public java.lang.String | schemaForVariable(java.lang.String variable)INTERNAL
Returns the abstract schema name if the specified string denotes a
range variable.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
return (decl != null) ? decl.schema : null;
|
| public void | setBaseVariable(java.lang.String variable)
this.baseVariable = variable;
|
| public void | setScopeOfVariable(java.lang.String variable)INTERNAL
Sets the scope of the specified variable to the current scope.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
if (decl != null) {
decl.scope = currentScope;
}
|
| public void | setTypeHelper(oracle.toplink.essentials.internal.parsing.TypeHelper typeHelper)INTERNAL
Stores the specified type helper in this context.
this.typeHelper = typeHelper;
|
| public void | unregisterVariable(java.lang.String variable)INTERNAL
variableDecls.remove(variable);
|
| public void | usedVariable(java.lang.String variable)Mark the specified variable as used if it is declared in the current
scope.
VariableDecl decl = (VariableDecl)variableDecls.get(variable);
if ((decl != null) && (decl.scope == currentScope)) {
decl.used = true;
}
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