パッケージ org.postgresql.core

クラス ConnectionFactory

java.lang.Object
org.postgresql.core.ConnectionFactory
直系の既知のサブクラス:
ConnectionFactoryImpl

public abstract class ConnectionFactory extends Object
Handles protocol-specific connection setup.
  • コンストラクタの詳細

    • ConnectionFactory

      public ConnectionFactory()
  • メソッドの詳細

    • openConnection

      public static QueryExecutor openConnection(HostSpec[] hostSpecs, Properties info) throws SQLException

      Establishes and initializes a new connection.

      If the "protocolVersion" property is specified, only that protocol version is tried. Otherwise, all protocols are tried in order, falling back to older protocols as necessary.

      Currently, protocol versions 3 (7.4+) is supported.

      パラメータ:
      hostSpecs - at least one host and port to connect to; multiple elements for round-robin failover
      info - extra properties controlling the connection; notably, "password" if present supplies the password to authenticate with.
      戻り値:
      the new, initialized, connection
      例外:
      SQLException - if the connection could not be established.
    • openConnectionImpl

      public abstract QueryExecutor openConnectionImpl(HostSpec[] hostSpecs, Properties info) throws SQLException
      Implementation of openConnection(org.postgresql.util.HostSpec[], java.util.Properties) for a particular protocol version. Implemented by subclasses of ConnectionFactory.
      パラメータ:
      hostSpecs - at least one host and port to connect to; multiple elements for round-robin failover
      info - extra properties controlling the connection; notably, "password" if present supplies the password to authenticate with.
      戻り値:
      the new, initialized, connection, or null if this protocol version is not supported by the server.
      例外:
      SQLException - if the connection could not be established for a reason other than protocol version incompatibility.
    • closeStream

      protected void closeStream(@Nullable PGStream newStream)
      Safely close the given stream.
      パラメータ:
      newStream - The stream to close.