本文整理了Java中java.sql.Wrapper.isWrapperFor()方法的一些代码示例，展示了Wrapper.isWrapperFor()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Wrapper.isWrapperFor()方法的具体详情如下：
包路径：java.sql.Wrapper
类名称：Wrapper
方法名：isWrapperFor

Wrapper.isWrapperFor介绍

[英]If the caller is a wrapper of the class or implements the given interface, the methods return false and vice versa.
[中]如果调用方是类的包装器或实现给定接口，则方法返回false，反之亦然。

代码示例

代码示例来源：origin: alibaba/druid

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
  if (null == wrapper) {
    //Best to log error.
    return false;
  }
  if (iface == null) {
    return false;
  }
  if (iface == wrapper.getClass()) {
    return true;
  }
  if (iface == this.getClass()) {
    return true;
  }
  
  if (!(wrapper instanceof WrapperProxy)) {
    if (iface.isInstance(wrapper)) {
      return true;
    }
  }
  return wrapper.isWrapperFor(iface);
}

代码示例来源：origin: alibaba/druid

@Override
public boolean isWrapperFor(Wrapper wrapper, Class<?> iface) throws SQLException {
  if (this.pos < filterSize) {
    return nextFilter()
        .isWrapperFor(this, wrapper, iface);
  }
  // // if driver is for jdbc 3.0
  if (iface.isInstance(wrapper)) {
    return true;
  }
  return wrapper.isWrapperFor(iface);
}

代码示例来源：origin: codingapi/tx-lcn

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
 if (iface.isAssignableFrom(getClass())) {
  // if the proxy directly proxy the interface or extends it, return true
  return true;
 } else if (iface.isAssignableFrom(delegate.getClass())) {
  // if the proxied object directly implements the interface or extends it, return true
  return true;
 } else if (Wrapper.class.isAssignableFrom(delegate.getClass())) {
  // if the proxied object implements the wrapper interface, then
  // return the result of it's isWrapperFor method.
  return ((Wrapper) unwrapP6SpyProxy()).isWrapperFor(iface);
 }
 return false;
}

代码示例来源：origin: p6spy/p6spy

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
 return ((Wrapper) realDataSource).isWrapperFor(iface);
}

代码示例来源：origin: p6spy/p6spy

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
 if (iface.isAssignableFrom(getClass())) {
  // if the proxy directly proxy the interface or extends it, return true
  return true;
 } else if (iface.isAssignableFrom(delegate.getClass())) {
  // if the proxied object directly implements the interface or extends it, return true
  return true;
 } else if (Wrapper.class.isAssignableFrom(delegate.getClass())) {
  // if the proxied object implements the wrapper interface, then
  // return the result of it's isWrapperFor method.
  return ((Wrapper) unwrapP6SpyProxy()).isWrapperFor(iface);
 }
 return false;
}

代码示例来源：origin: com.alibaba/druid

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
  if (null == wrapper) {
    //Best to log error.
    return false;
  }
  if (iface == null) {
    return false;
  }
  if (iface == wrapper.getClass()) {
    return true;
  }
  if (iface == this.getClass()) {
    return true;
  }
  
  if (!(wrapper instanceof WrapperProxy)) {
    if (iface.isInstance(wrapper)) {
      return true;
    }
  }
  return wrapper.isWrapperFor(iface);
}

代码示例来源：origin: com.alibaba/druid

@Override
public boolean isWrapperFor(Wrapper wrapper, Class<?> iface) throws SQLException {
  if (this.pos < filterSize) {
    return nextFilter()
        .isWrapperFor(this, wrapper, iface);
  }
  // // if driver is for jdbc 3.0
  if (iface.isInstance(wrapper)) {
    return true;
  }
  return wrapper.isWrapperFor(iface);
}

代码示例来源：origin: geotools/geotools

if (w.isWrapperFor(OracleConnection.class)) {
  return w.unwrap(OracleConnection.class);

代码示例来源：origin: p6spy/p6spy

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
 return ((Wrapper) realDataSource).isWrapperFor(iface);
}

代码示例来源：origin: stackoverflow.com

public boolean isWrapperFor(Class<?> cls) {
  if (wrappedObj instanceof Wrapper) {
    return ((Wrapper)wrappedObj).isWrapperFor(cls);
  }
  return cls.isInstance(wrappedObj);
}

代码示例来源：origin: kumuluz/kumuluzee

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
  if (xaDataSource == null) {
    throw new SQLException("The underlying XADataSource is invalid or cannot be found");
  } else if (iface.isInstance(xaDataSource)) {
    return true;
  } else if (xaDataSource instanceof Wrapper) {
    return ((java.sql.Wrapper) xaDataSource).isWrapperFor(iface);
  }
  return false;
}

代码示例来源：origin: com.kumuluz.ee/kumuluzee-common

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
  if (xaDataSource == null) {
    throw new SQLException("The underlying XADataSource is invalid or cannot be found");
  } else if (iface.isInstance(xaDataSource)) {
    return true;
  } else if (xaDataSource instanceof Wrapper) {
    return ((java.sql.Wrapper) xaDataSource).isWrapperFor(iface);
  }
  return false;
}

代码示例来源：origin: org.javasimon/javasimon-jdbc41

public boolean isWrapperFor(Class<?> iface) throws SQLException {
  return delegateType.equals(iface) || delegate.isWrapperFor(iface);
}

代码示例来源：origin: com.sqlapp/sqlapp-core

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
  if (iface.isAssignableFrom(this.getClass())) {
    return true;
  }
  return nativeObject.isWrapperFor(iface);
}

代码示例来源：origin: stackoverflow.com

Context ic = new InitialContext();
DataSource ds = (DataSource)ic.lookup("jdbc/OracleDS");
Connection conn = ds.getConnection();

// Returns true if this either implements the interface argument
// or is directly or indirectly a wrapper for an object that does.
if (conn.isWrapperFor(oracle.jdbc.OracleConnection.class)) {
  // Returns an object that implements the given interface to
  // allow access to non-standard methods, or standard methods
  // not exposed by the proxy.
  oracle.jdbc.OracleConnection oraCon = conn.unwrap(oracle.jdbc.OracleConnection.class);
  // Do some Oracle-specific work here.
}

代码示例来源：origin: stackoverflow.com

try (Connection hikariCon = dbConnect.getConnection()) {
 if (hikariCon.isWrapperFor(OracleConnection.class)) {
  OracleConnection connection = hikariCon.unwrap(OracleConnection.class);
  :
  :
 }

代码示例来源：origin: p6spy/p6spy

@Override
public boolean isWrapperFor(Class<?> iface) throws SQLException {
 if (iface.isAssignableFrom(getClass())) {
  // if the proxy directly proxy the interface or extends it, return true
  return true;
 } else if (iface.isAssignableFrom(delegate.getClass())) {
  // if the proxied object directly implements the interface or extends it, return true
  return true;
 } else if (Wrapper.class.isAssignableFrom(delegate.getClass())) {
  // if the proxied object implements the wrapper interface, then
  // return the result of it's isWrapperFor method.
  return ((Wrapper) unwrapP6SpyProxy()).isWrapperFor(iface);
 }
 return false;
}

代码示例来源：origin: stackoverflow.com

Connection unwrapConnection = databaseSession.getServerPlatform()
       .unwrapConnection(accessor.getConnection());
   oracle.jdbc.OracleConnection connection = null;
   try {
     if (unwrapConnection.isWrapperFor(OracleConnection.class)) {
       connection = unwrapConnection.unwrap(OracleConnection.class);
     } else {
       // recover, not an oracle connection
       connection = (oracle.jdbc.OracleConnection) databaseSession.getServerPlatform()
           .unwrapConnection(accessor.getConnection());
     }
   } catch (SQLException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
   }

代码示例来源：origin: org.javasimon/javasimon-jdbc41

public <T> T unwrap(Class<T> iface) throws SQLException {
    if (delegateType.equals(iface)) {
      return delegate.isWrapperFor(iface) ? delegate.unwrap(iface) : iface.cast(delegate);
    } else {
      return delegate.unwrap(iface);
    }
  }
}

代码示例来源：origin: com.github.gquintana.metrics/metrics-sql

protected Object unwrap(MethodInvocation<T> methodInvocation) throws SQLException {
  final Class iface = getClassArg(methodInvocation);
  final Wrapper delegateWrapper = (Wrapper) delegate;
  Object result;
  if (isDelegateType(iface)) {
    result = delegateWrapper.isWrapperFor(iface) ? delegateWrapper.unwrap(iface) : iface.cast(delegateWrapper);
  } else {
    result = delegateWrapper.unwrap(iface);
  }
  return result;
}