Package org.apache.lucene.store
Class RAMOutputStream
- java.lang.Object
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- org.apache.lucene.store.DataOutput
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- org.apache.lucene.store.IndexOutput
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- org.apache.lucene.store.RAMOutputStream
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- All Implemented Interfaces:
Closeable
,AutoCloseable
,Accountable
@Deprecated public class RAMOutputStream extends IndexOutput implements Accountable
Deprecated.This class uses inefficient synchronization and is discouraged in favor ofMMapDirectory
. It will be removed in future versions of Lucene.A memory-residentIndexOutput
implementation.- NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
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Constructor Summary
Constructors Constructor Description RAMOutputStream()
Deprecated.Construct an empty output buffer.RAMOutputStream(String name, RAMFile f, boolean checksum)
Deprecated.Creates this, with specified name.RAMOutputStream(RAMFile f, boolean checksum)
Deprecated.Creates this, with no name.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description void
close()
Deprecated.Closes this stream to further operations.protected void
flush()
Deprecated.Forces any buffered output to be written.long
getChecksum()
Deprecated.Returns the current checksum of bytes written so farCollection<Accountable>
getChildResources()
Deprecated.Returns nested resources of this class.long
getFilePointer()
Deprecated.Returns the current position in this file, where the next write will occur.long
ramBytesUsed()
Deprecated.Returns byte usage of all buffers.void
reset()
Deprecated.Resets this to an empty file.void
writeByte(byte b)
Deprecated.Writes a single byte.void
writeBytes(byte[] b, int offset, int len)
Deprecated.Writes an array of bytes.void
writeTo(byte[] bytes, int offset)
Deprecated.Copy the current contents of this buffer to output byte arrayvoid
writeTo(DataOutput out)
Deprecated.Copy the current contents of this buffer to the providedDataOutput
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Methods inherited from class org.apache.lucene.store.IndexOutput
getName, toString
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Methods inherited from class org.apache.lucene.store.DataOutput
copyBytes, writeBytes, writeInt, writeLong, writeMapOfStrings, writeSetOfStrings, writeShort, writeString, writeVInt, writeVLong, writeZInt, writeZLong
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Constructor Detail
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RAMOutputStream
public RAMOutputStream()
Deprecated.Construct an empty output buffer.
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RAMOutputStream
public RAMOutputStream(RAMFile f, boolean checksum)
Deprecated.Creates this, with no name.
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Method Detail
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writeTo
public void writeTo(DataOutput out) throws IOException
Deprecated.Copy the current contents of this buffer to the providedDataOutput
.- Throws:
IOException
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writeTo
public void writeTo(byte[] bytes, int offset) throws IOException
Deprecated.Copy the current contents of this buffer to output byte array- Throws:
IOException
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reset
public void reset()
Deprecated.Resets this to an empty file.
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close
public void close() throws IOException
Deprecated.Description copied from class:IndexOutput
Closes this stream to further operations.- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Specified by:
close
in classIndexOutput
- Throws:
IOException
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writeByte
public void writeByte(byte b) throws IOException
Deprecated.Description copied from class:DataOutput
Writes a single byte.The most primitive data type is an eight-bit byte. Files are accessed as sequences of bytes. All other data types are defined as sequences of bytes, so file formats are byte-order independent.
- Specified by:
writeByte
in classDataOutput
- Throws:
IOException
- See Also:
DataInput.readByte()
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writeBytes
public void writeBytes(byte[] b, int offset, int len) throws IOException
Deprecated.Description copied from class:DataOutput
Writes an array of bytes.- Specified by:
writeBytes
in classDataOutput
- Parameters:
b
- the bytes to writeoffset
- the offset in the byte arraylen
- the number of bytes to write- Throws:
IOException
- See Also:
DataInput.readBytes(byte[],int,int)
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flush
protected void flush() throws IOException
Deprecated.Forces any buffered output to be written.- Throws:
IOException
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getFilePointer
public long getFilePointer()
Deprecated.Description copied from class:IndexOutput
Returns the current position in this file, where the next write will occur.- Specified by:
getFilePointer
in classIndexOutput
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ramBytesUsed
public long ramBytesUsed()
Deprecated.Returns byte usage of all buffers.- Specified by:
ramBytesUsed
in interfaceAccountable
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getChildResources
public Collection<Accountable> getChildResources()
Deprecated.Description copied from interface:Accountable
Returns nested resources of this class. The result should be a point-in-time snapshot (to avoid race conditions).- Specified by:
getChildResources
in interfaceAccountable
- See Also:
Accountables
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getChecksum
public long getChecksum() throws IOException
Deprecated.Description copied from class:IndexOutput
Returns the current checksum of bytes written so far- Specified by:
getChecksum
in classIndexOutput
- Throws:
IOException
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