API java : Array


java.sql
Interface Array

All Known Implementing Classes:
SerialArray

public interface Array

The mapping in the Java programming language for the SQL type ARRAY. By default, an Array value is a transaction-duration reference to an SQL ARRAY value. By default, an Array object is implemented using an SQL LOCATOR(array) internally, which means that an Array object contains a logical pointer to the data in the SQL ARRAY value rather than containing the ARRAY value's data.

The Array interface provides methods for bringing an SQL ARRAY value's data to the client as either an array or a ResultSet object. If the elements of the SQL ARRAY are a UDT, they may be custom mapped. To create a custom mapping, a programmer must do two things:

  • create a class that implements the SQLData interface for the UDT to be custom mapped.
  • make an entry in a type map that contains
    • the fully-qualified SQL type name of the UDT
    • the Class object for the class implementing SQLData

When a type map with an entry for the base type is supplied to the methods getArray and getResultSet, the mapping it contains will be used to map the elements of the ARRAY value. If no type map is supplied, which would typically be the case, the connection's type map is used by default. If the connection's type map or a type map supplied to a method has no entry for the base type, the elements are mapped according to the standard mapping.

Since:
1.2

Method Summary
 Object getArray()
          Retrieves the contents of the SQL ARRAY value designated by this Array object in the form of an array in the Java programming language.
 Object getArray(long index, int count)
          Retrieves a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.
 Object getArray(long index, int count, Map<String,Class<?>> map)
          Retreives a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.
 Object getArray(Map<String,Class<?>> map)
          Retrieves the contents of the SQL ARRAY value designated by this Array object.
 int getBaseType()
          Retrieves the JDBC type of the elements in the array designated by this Array object.
 String getBaseTypeName()
          Retrieves the SQL type name of the elements in the array designated by this Array object.
 ResultSet getResultSet()
          Retrieves a result set that contains the elements of the SQL ARRAY value designated by this Array object.
 ResultSet getResultSet(long index, int count)
          Retrieves a result set holding the elements of the subarray that starts at index index and contains up to count successive elements.
 ResultSet getResultSet(long index, int count, Map<String,Class<?>> map)
          Retrieves a result set holding the elements of the subarray that starts at index index and contains up to count successive elements.
 ResultSet getResultSet(Map<String,Class<?>> map)
          Retrieves a result set that contains the elements of the SQL ARRAY value designated by this Array object.
 

Method Detail

getBaseTypeName

String getBaseTypeName()
                       throws SQLException
Retrieves the SQL type name of the elements in the array designated by this Array object. If the elements are a built-in type, it returns the database-specific type name of the elements. If the elements are a user-defined type (UDT), this method returns the fully-qualified SQL type name.

Returns:
a String that is the database-specific name for a built-in base type; or the fully-qualified SQL type name for a base type that is a UDT
Throws:
SQLException - if an error occurs while attempting to access the type name
Since:
1.2

getBaseType

int getBaseType()
                throws SQLException
Retrieves the JDBC type of the elements in the array designated by this Array object.

Returns:
a constant from the class Types that is the type code for the elements in the array designated by this Array object
Throws:
SQLException - if an error occurs while attempting to access the base type
Since:
1.2

getArray

Object getArray()
                throws SQLException
Retrieves the contents of the SQL ARRAY value designated by this Array object in the form of an array in the Java programming language. This version of the method getArray uses the type map associated with the connection for customizations of the type mappings.

Returns:
an array in the Java programming language that contains the ordered elements of the SQL ARRAY value designated by this Array object
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

getArray

Object getArray(Map<String,Class<?>> map)
                throws SQLException
Retrieves the contents of the SQL ARRAY value designated by this Array object. This method uses the specified map for type map customizations unless the base type of the array does not match a user-defined type in map, in which case it uses the standard mapping. This version of the method getArray uses either the given type map or the standard mapping; it never uses the type map associated with the connection.

Parameters:
map - a java.util.Map object that contains mappings of SQL type names to classes in the Java programming language
Returns:
an array in the Java programming language that contains the ordered elements of the SQL array designated by this object
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

getArray

Object getArray(long index,
                int count)
                throws SQLException
Retrieves a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array. This method uses the type map associated with the connection for customizations of the type mappings.

Parameters:
index - the array index of the first element to retrieve; the first element is at index 1
count - the number of successive SQL array elements to retrieve
Returns:
an array containing up to count consecutive elements of the SQL array, beginning with element index
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

getArray

Object getArray(long index,
                int count,
                Map<String,Class<?>> map)
                throws SQLException
Retreives a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.

This method uses the specified map for type map customizations unless the base type of the array does not match a user-defined type in map, in which case it uses the standard mapping. This version of the method getArray uses either the given type map or the standard mapping; it never uses the type map associated with the connection.

Parameters:
index - the array index of the first element to retrieve; the first element is at index 1
count - the number of successive SQL array elements to retrieve
map - a java.util.Map object that contains SQL type names and the classes in the Java programming language to which they are mapped
Returns:
an array containing up to count consecutive elements of the SQL ARRAY value designated by this Array object, beginning with element index
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

getResultSet

ResultSet getResultSet()
                       throws SQLException
Retrieves a result set that contains the elements of the SQL ARRAY value designated by this Array object. If appropriate, the elements of the array are mapped using the connection's type map; otherwise, the standard mapping is used.

The result set contains one row for each array element, with two columns in each row. The second column stores the element value; the first column stores the index into the array for that element (with the first array element being at index 1). The rows are in ascending order corresponding to the order of the indices.

Returns:
a ResultSet object containing one row for each of the elements in the array designated by this Array object, with the rows in ascending order based on the indices.
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

getResultSet

ResultSet getResultSet(Map<String,Class<?>> map)
                       throws SQLException
Retrieves a result set that contains the elements of the SQL ARRAY value designated by this Array object. This method uses the specified map for type map customizations unless the base type of the array does not match a user-defined type in map, in which case it uses the standard mapping. This version of the method getResultSet uses either the given type map or the standard mapping; it never uses the type map associated with the connection.

The result set contains one row for each array element, with two columns in each row. The second column stores the element value; the first column stores the index into the array for that element (with the first array element being at index 1). The rows are in ascending order corresponding to the order of the indices.

Parameters:
map - contains the mapping of SQL user-defined types to classes in the Java programming language
Returns:
a ResultSet object containing one row for each of the elements in the array designated by this Array object, with the rows in ascending order based on the indices.
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

getResultSet

ResultSet getResultSet(long index,
                       int count)
                       throws SQLException
Retrieves a result set holding the elements of the subarray that starts at index index and contains up to count successive elements. This method uses the connection's type map to map the elements of the array if the map contains an entry for the base type. Otherwise, the standard mapping is used.

The result set has one row for each element of the SQL array designated by this object, with the first row containing the element at index index. The result set has up to count rows in ascending order based on the indices. Each row has two columns: The second column stores the element value; the first column stores the index into the array for that element.

Parameters:
index - the array index of the first element to retrieve; the first element is at index 1
count - the number of successive SQL array elements to retrieve
Returns:
a ResultSet object containing up to count consecutive elements of the SQL array designated by this Array object, starting at index index.
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

getResultSet

ResultSet getResultSet(long index,
                       int count,
                       Map<String,Class<?>> map)
                       throws SQLException
Retrieves a result set holding the elements of the subarray that starts at index index and contains up to count successive elements. This method uses the specified map for type map customizations unless the base type of the array does not match a user-defined type in map, in which case it uses the standard mapping. This version of the method getResultSet uses either the given type map or the standard mapping; it never uses the type map associated with the connection.

The result set has one row for each element of the SQL array designated by this object, with the first row containing the element at index index. The result set has up to count rows in ascending order based on the indices. Each row has two columns: The second column stores the element value; the first column stroes the index into the array for that element.

Parameters:
index - the array index of the first element to retrieve; the first element is at index 1
count - the number of successive SQL array elements to retrieve
map - the Map object that contains the mapping of SQL type names to classes in the Java(tm) programming language
Returns:
a ResultSet object containing up to count consecutive elements of the SQL array designated by this Array object, starting at index index.
Throws:
SQLException - if an error occurs while attempting to access the array
Since:
1.2

Ces informations proviennent du site de http://java.sun.com

Remarques

Contenu

Le contenu de cette page provient du site de Sun, et est généré depuis un cache sur l'infobrol après certains traitements automatisés. La présentation peut donc différer du document original, mais le contenu aussi. Vous pouvez utiliser ce bouton pour afficher la page originale du site de Sun :

Quels sont les motivations de cette démarche?

Maintenir les pages en cache sur différents sites peut offrir plus de disponibilité.

Chaque page est indexée dans la base de donnée, ce qui permet de retrouver facilement les informations, au moyen des sommaires, du moteur de recherche interne, etc.

Des facilités sont mises en place pour que les membres de l'infobrol puissent effectuer des traductions en français des différents documents. Ceci devrait permettre aux débutants en programmation Java de consulter les API en français s'ils maîtrisent moins bien la langue de Shakespeare. Dans le cas où une traduction a été soumise, elle est disponible au moyen d'un lien en bas de page. Si la traduction a été validée, la page s'affiche par défaut en français, et un lien en bas de page permet d'atteindre la version en anglais.

Le code sur l'infobrol est automatiquement coloré selon la syntaxe, et les différents mots clés sont transformés en liens pour accéder rapidement aux informations.

Vous avez la possibilité de partager vos expériences en proposant vos propres extraits de code en utilisant le bouton "ajouter un commentaire" en bas de page. Si vous visitez simplement l'infobrol, vous avez déjà accès à cette fonction, mais si vous étes membre du brol, vous pouvez en plus utiliser des boutons supplémentaires de mise en forme, dont la coloration automatique de vos extraits de codes.

Réseaux sociaux

Vous pouvez modifier vos préférences dans votre profil pour ne plus afficher les interactions avec les réseaux sociaux sur ces pages.

 

Nuage de mots clés

6 mots clés dont 0 définis manuellement (plus d'information...).

Avertissement

Cette page ne possède pas encore de mots clés manuels, ceci est donc un exemple automatique (les niveaux de pertinence sont fictifs, mais les liens sont valables). Pour tester le nuage avec une page qui contient des mots définis manuellement, vous pouvez cliquer ici.

Vous pouvez modifier vos préférences dans votre profil pour ne plus afficher le nuage de mots clés.

 

Astuce pour imprimer les couleurs des cellules de tableaux : http://www.gaudry.be/ast-rf-450.html
Aucun commentaire pour cette page

© Ce document issu de l′infobrol est enregistré sous le certificat Cyber PrInterDeposit Digital Numbertection. Enregistrement IDDN n° 5329-1090
Document créé le 28/08/06 23:13, dernière modification le Vendredi 17 Juin 2011, 12:12
Source du document imprimé : http:///www.gaudry.be/java-api-rf-java/sql/Array.html
St.Gaudry©07.01.02
Outils (masquer)
||
Recherche (afficher)
Recherche :

Utilisateur (masquer)
Apparence (afficher)
Stats (afficher)
15838 documents
455 astuces.
550 niouzes.
3107 definitions.
447 membres.
8121 messages.

Document genere en :
0,09 seconde

Mises à jour :
Mises à jour du site
Citation (masquer)
La simplicité, c'est l'harmonie parfaite entre le beau, l'utile et le juste…

Franck Lloyd Wright
 
l'infobrol
Nous sommes le Mercredi 26 Juillet 2017, 06:39, toutes les heures sont au format GMT+1.00 Heure, heure d'été (+1)