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java.lang.Objectorg.apache.lucene.store.DataInput
org.apache.lucene.store.IndexInput
org.apache.lucene.store.RAMInputStream
public class RAMInputStream
A memory-resident IndexInput implementation.
| Constructor Summary | |
|---|---|
RAMInputStream(RAMFile f)
Deprecated. |
|
RAMInputStream(String name,
RAMFile f)
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|
| Method Summary | |
|---|---|
void |
close()
Closes the stream to further operations. |
void |
copyBytes(IndexOutput out,
long numBytes)
Copies numBytes bytes to the given IndexOutput. |
long |
getFilePointer()
Returns the current position in this file, where the next read will occur. |
long |
length()
The number of bytes in the file. |
byte |
readByte()
Reads and returns a single byte. |
void |
readBytes(byte[] b,
int offset,
int len)
Reads a specified number of bytes into an array at the specified offset. |
void |
seek(long pos)
Sets current position in this file, where the next read will occur. |
| Methods inherited from class org.apache.lucene.store.IndexInput |
|---|
skipChars, toString |
| Methods inherited from class org.apache.lucene.store.DataInput |
|---|
clone, readBytes, readChars, readInt, readLong, readShort, readString, readStringStringMap, readVInt, readVLong, setModifiedUTF8StringsMode |
| Methods inherited from class java.lang.Object |
|---|
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
@Deprecated
public RAMInputStream(RAMFile f)
throws IOException
IOException
public RAMInputStream(String name,
RAMFile f)
throws IOException
IOException| Method Detail |
|---|
public void close()
IndexInput
close in interface Closeableclose in class IndexInputpublic long length()
IndexInput
length in class IndexInput
public byte readByte()
throws IOException
DataInput
readByte in class DataInputIOExceptionDataOutput.writeByte(byte)
public void readBytes(byte[] b,
int offset,
int len)
throws IOException
DataInput
readBytes in class DataInputb - the array to read bytes intooffset - the offset in the array to start storing byteslen - the number of bytes to read
IOExceptionDataOutput.writeBytes(byte[],int)
public void copyBytes(IndexOutput out,
long numBytes)
throws IOException
IndexInputnumBytes bytes to the given IndexOutput.
NOTE: this method uses an intermediate buffer to copy the bytes. Consider overriding it in your implementation, if you can make a better, optimized copy.
NOTE ensure that there are enough bytes in the input to copy to output. Otherwise, different exceptions may be thrown, depending on the implementation.
copyBytes in class IndexInputIOExceptionpublic long getFilePointer()
IndexInput
getFilePointer in class IndexInputIndexInput.seek(long)
public void seek(long pos)
throws IOException
IndexInput
seek in class IndexInputIOExceptionIndexInput.getFilePointer()
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