本文整理汇总了Java中org.postgresql.largeobject.LargeObject.getInputStream方法的典型用法代码示例。如果您正苦于以下问题：Java LargeObject.getInputStream方法的具体用法？Java LargeObject.getInputStream怎么用？Java LargeObject.getInputStream使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.postgresql.largeobject.LargeObject的用法示例。
在下文中一共展示了LargeObject.getInputStream方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getPostgreSqlnputStream
import org.postgresql.largeobject.LargeObject; //导入方法依赖的package包/类
/**
* Extract the Large Object Input Stream from PostgreSQL
*
* @param resultSet
* the Result Set to extract the blob from
* @param columnIndex
* the index of column
* @return the Large Object Input Stream from PostgreSQL
* @throws SQLException
*/
public static InputStream getPostgreSqlnputStream(ResultSet resultSet,
int columnIndex) throws SQLException {
InputStream in;
Statement statement = resultSet.getStatement();
Connection conn = statement.getConnection();
// Get the Large Object Manager to perform operations with
LargeObjectManager lobj = ((org.postgresql.PGConnection) conn)
.getLargeObjectAPI();
long oid = resultSet.getLong(columnIndex);
if (oid < 1) {
return null;
}
LargeObject obj = lobj.open(oid, LargeObjectManager.READ);
in = obj.getInputStream();
return in;
}
示例2: doReadPostgres
import org.postgresql.largeobject.LargeObject; //导入方法依赖的package包/类
/**
* Postgres does not allow to read from the large object after the connection has been closed.
*/
private InputStream doReadPostgres(String id) {
Handle h = dbi.open();
try {
h.getConnection().setAutoCommit(false);
List<Map<String, Object>> res = h.select("SELECT data FROM icon_filestore WHERE id=?", id);
Optional<Long> oid = res.stream()
.map(row -> row.get("data"))
.map(Long.class::cast)
.findFirst();
if (oid.isPresent()) {
LargeObjectManager lobj = getPostgresConnection(h.getConnection()).getLargeObjectAPI();
LargeObject obj = lobj.open(oid.get(), LargeObjectManager.READ);
return new HandleCloserInputStream(h, obj.getInputStream());
} else {
h.close();
return null;
}
} catch (SQLException e) {
IOUtils.closeQuietly(h);
throw IconDataAccessException.launderThrowable(e);
}
}
示例3: doReadPostgres
import org.postgresql.largeobject.LargeObject; //导入方法依赖的package包/类
/**
* Postgres does not allow to read from the large object after the connection has been closed.
*/
private InputStream doReadPostgres(String path) {
Handle h = dbi.open();
try {
h.getConnection().setAutoCommit(false);
List<Map<String, Object>> res = h.select("SELECT data FROM filestore WHERE path=?", path);
Optional<Long> oid = res.stream()
.map(row -> row.get("data"))
.map(Long.class::cast)
.findFirst();
if (oid.isPresent()) {
LargeObjectManager lobj = getPostgresConnection(h.getConnection()).getLargeObjectAPI();
LargeObject obj = lobj.open(oid.get(), LargeObjectManager.READ);
return new HandleCloserInputStream(h, obj.getInputStream());
} else {
h.close();
return null;
}
} catch (SQLException e) {
IOUtils.closeQuietly(h);
throw ExtensionDataAccessException.launderThrowable(e);
}
}
示例4: doReadPostgres
import org.postgresql.largeobject.LargeObject; //导入方法依赖的package包/类
/**
* Postgres does not allow to read from the large object after the connection has been closed.
*/
private InputStream doReadPostgres(String path) {
Handle h = dbi.open();
try {
h.getConnection().setAutoCommit(false);
List<Map<String, Object>> res = h.select("SELECT data FROM filestore WHERE path=?", path);
Optional<Long> oid = res.stream()
.map(row -> row.get("data"))
.map(Long.class::cast)
.findFirst();
if (oid.isPresent()) {
LargeObjectManager lobj = getPostgresConnection(h.getConnection()).getLargeObjectAPI();
LargeObject obj = lobj.open(oid.get(), LargeObjectManager.READ);
return new HandleCloserInputStream(h, obj.getInputStream());
} else {
h.close();
return null;
}
} catch (SQLException e) {
IOUtils.closeQuietly(h);
throw FileStoreException.launderThrowable(e);
}
}
示例5: getBinaryStream
import org.postgresql.largeobject.LargeObject; //导入方法依赖的package包/类
public synchronized InputStream getBinaryStream() throws SQLException
{
checkFreed();
LargeObject subLO = lo.copy();
subLOs.add(subLO);
subLO.seek(0, LargeObject.SEEK_SET);
return subLO.getInputStream();
}
开发者ID:health-and-care-developer-network，项目名称:health-and-care-developer-network，代码行数:9，代码来源:AbstractJdbc2BlobClob.java