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Java Source Code / Java Documentation » Database ORM » JPOX » org.jpox.store.query 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.jpox.store.query.QueryUtils

QueryUtils
public class QueryUtils (Code)
Utilities for use in queries.
version:
   $Revision: 1.23 $


Field Summary
final protected static  LocaliserLOCALISER
     Localiser for messages.


Method Summary
public static  ObjectcreateResultObjectUsingArgumentedConstructor(Class resultClass, Object[] fieldValues)
     Convenience method to create an instance of the result class with the provided field values, using a constructor taking the arguments.
public static  ObjectcreateResultObjectUsingDefaultConstructorAndSetters(Class resultClass, String[] resultFieldNames, Map resultClassFieldNames, Object[] fieldValues)
     Convenience method to create an instance of the result class with the provided field values, using the default constructor and setting the fields using either public fields, or setters, or a put method.
public static  String[]getExpressionsFromString(String str)
     Convenience method to split an expression string into its constituent parts where separated by commas.
public static  MethodgetPublicPutMethodForResultClass(Class resultClass)
     Convenience method to return the put(Object, Object method for the result class.
public static  MethodgetPublicSetMethodForFieldOfResultClass(Class resultClass, String fieldName, Class fieldType)
     Convenience method to return the setXXX method for a field of the result class.
public static  booleanresultClassIsSimple(String className)
     Utility to return if the passed result class is a simple type with a single value.
public static  booleanresultClassIsUserType(String className)
     Utility to return if the passed result class is a user-type, and so requires fields matching up.

Field Detail
LOCALISER
final protected static Localiser LOCALISER(Code)
Localiser for messages.





Method Detail
createResultObjectUsingArgumentedConstructor
public static Object createResultObjectUsingArgumentedConstructor(Class resultClass, Object[] fieldValues)(Code)
Convenience method to create an instance of the result class with the provided field values, using a constructor taking the arguments. If the returned object is null there is no constructor with the correct signature.
Parameters:
  resultClass - The class of results that need creating
Parameters:
  fieldValues - The field values The result class object



createResultObjectUsingDefaultConstructorAndSetters
public static Object createResultObjectUsingDefaultConstructorAndSetters(Class resultClass, String[] resultFieldNames, Map resultClassFieldNames, Object[] fieldValues)(Code)
Convenience method to create an instance of the result class with the provided field values, using the default constructor and setting the fields using either public fields, or setters, or a put method. If one of these parts is not found in the result class the returned object is null.
Parameters:
  resultClass - Result class that we need to create an object of
Parameters:
  resultFieldNames - Names of the fields in the results
Parameters:
  resultClassFieldNames - Map of the result class fields, keyed by the field name
Parameters:
  fieldValues - The field values The result class object



getExpressionsFromString
public static String[] getExpressionsFromString(String str)(Code)
Convenience method to split an expression string into its constituent parts where separated by commas. This is used in the case of, for example, a result specification, to get the column definitions.
Parameters:
  str - The expression string The expression parts



getPublicPutMethodForResultClass
public static Method getPublicPutMethodForResultClass(Class resultClass)(Code)
Convenience method to return the put(Object, Object method for the result class.
Parameters:
  resultClass - The result class The put(Object, Object) method



getPublicSetMethodForFieldOfResultClass
public static Method getPublicSetMethodForFieldOfResultClass(Class resultClass, String fieldName, Class fieldType)(Code)
Convenience method to return the setXXX method for a field of the result class.
Parameters:
  resultClass - The result class
Parameters:
  fieldName - Name of the field
Parameters:
  fieldType - The type of the field being set The setter method



resultClassIsSimple
public static boolean resultClassIsSimple(String className)(Code)
Utility to return if the passed result class is a simple type with a single value. Checks the class name against the supported "simple" JDOQL result-class types.
Parameters:
  className - the class name looked for Whether the result class is "simple".



resultClassIsUserType
public static boolean resultClassIsUserType(String className)(Code)
Utility to return if the passed result class is a user-type, and so requires fields matching up.
Parameters:
  className - the class name looked for Whether it is a user class



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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