Class LobStreamDataHelper
- java.lang.Object
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- org.hibernate.type.descriptor.java.LobStreamDataHelper
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public final class LobStreamDataHelper extends Object
A help for dealing with BLOB and CLOB data
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static byte[]
extractBytes(InputStream inputStream)
Extract by bytes from the given stream.static byte[]
extractBytes(InputStream inputStream, long start, int length)
Extract a portion of the bytes from the given stream.static String
extractString(Reader reader)
Extract the contents of the given reader/stream as a string.static String
extractString(Reader reader, int lengthHint)
Extract the contents of the given reader/stream as a string.static String
extractString(Clob value)
Extract the contents of the given Clob as a string.static boolean
isNClob(Class type)
static InputStream
subStream(InputStream inputStream, long start, int length)
Extract a portion of the bytes from the given stream., wrapping them in a new stream.static Object
subStream(Reader characterStream, long start, int length)
Extract a portion of a reader, wrapping the portion in a new reader.
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Method Detail
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isNClob
public static boolean isNClob(Class type)
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extractString
public static String extractString(Reader reader)
Extract the contents of the given reader/stream as a string. The reader will be closed.- Parameters:
reader
- The reader for the content- Returns:
- The content as string
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extractString
public static String extractString(Reader reader, int lengthHint)
Extract the contents of the given reader/stream as a string. The reader will be closed.- Parameters:
reader
- The reader for the contentlengthHint
- if the length is known in advance the implementation can be slightly more efficient- Returns:
- The content as string
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subStream
public static Object subStream(Reader characterStream, long start, int length)
Extract a portion of a reader, wrapping the portion in a new reader.- Parameters:
characterStream
- The reader for the contentstart
- The start position/offset (0-based, per general stream/reader contracts).length
- The amount to extract- Returns:
- The content portion as a reader
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extractBytes
public static byte[] extractBytes(InputStream inputStream)
Extract by bytes from the given stream.- Parameters:
inputStream
- The stream of bytes.- Returns:
- The contents as a
byte[]
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extractBytes
public static byte[] extractBytes(InputStream inputStream, long start, int length)
Extract a portion of the bytes from the given stream.- Parameters:
inputStream
- The stream of bytes.start
- The start position/offset (0-based, per general stream/reader contracts).length
- The amount to extract- Returns:
- The extracted bytes
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subStream
public static InputStream subStream(InputStream inputStream, long start, int length)
Extract a portion of the bytes from the given stream., wrapping them in a new stream.- Parameters:
inputStream
- The stream of bytes.start
- The start position/offset (0-based, per general stream/reader contracts).length
- The amount to extract- Returns:
- The extracted bytes as a stream
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