oracle.pg.rdbms.index.jdbc.operators

Class JdbcBufferedIndexInput

java.lang.Object

org.apache.lucene.store.DataInput

org.apache.lucene.store.IndexInput

org.apache.lucene.store.ConfigurableBufferedIndexInput

oracle.pg.rdbms.index.jdbc.operators.JdbcBufferedIndexInput

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable, JdbcIndexConfigurable

Direct Known Subclasses:

FetchOnBufferReadJdbcIndexInput, FetchPerTransactionJdbcIndexInput

public abstract class JdbcBufferedIndexInput
extends org.apache.lucene.store.ConfigurableBufferedIndexInput
implements JdbcIndexConfigurable

An Oracle extension of Compass JdbcBufferedIndexInput class. This class perform index input memory based buffering.

Field Summary

Fields

Modifier and Type	Field and Description
static String	BUFFER_SIZE_SETTING The buffer size setting name.

Fields inherited from class org.apache.lucene.store.ConfigurableBufferedIndexInput

BUFFER_SIZE

Constructor Summary

Constructors

Constructor and Description
JdbcBufferedIndexInput() Constructs a JdbcBufferedIndexInput
JdbcBufferedIndexInput(String resourceDescription) Constructs a JdbcBufferedIndexInput from the given resource description

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(String name, OracleJdbcDirectory jdbcDirectory) Configures this object instance with the given name and OracleJdbcDirectory object.
int	getSetting(String setting, int defaultValue) Returns the int value that matches the given setting.

Methods inherited from class org.apache.lucene.store.ConfigurableBufferedIndexInput

clone, getBufferSize, getFilePointer, readByte, readBytes, seek, setBufferSize, slice

Methods inherited from class org.apache.lucene.store.IndexInput

close, length, toString

Methods inherited from class org.apache.lucene.store.DataInput

readBytes, readInt, readLong, readShort, readString, readStringSet, readStringStringMap, readVInt, readVLong, readZInt, readZLong, skipBytes

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

BUFFER_SIZE_SETTING

public static final String BUFFER_SIZE_SETTING

The buffer size setting name. See JdbcFileEntrySettings.setIntSetting(String,int). Should be set in bytes.

See Also:

Constant Field Values

Constructor Detail

JdbcBufferedIndexInput

public JdbcBufferedIndexInput()

Constructs a JdbcBufferedIndexInput

JdbcBufferedIndexInput

public JdbcBufferedIndexInput(String resourceDescription)

Constructs a JdbcBufferedIndexInput from the given resource description

Parameters:

resourceDescription - a string describing this resource. It must NOT be null.

Method Detail

configure

public void configure(String name,
             OracleJdbcDirectory jdbcDirectory)
               throws IOException

Configures this object instance with the given name and OracleJdbcDirectory object.

Specified by:

configure in interface JdbcIndexConfigurable

Parameters:

name - the name of this IndexOutput object

jdbcDirectory - the OracleJdbcDirectory where the index is stored.

Throws:

IOException

getSetting

public int getSetting(String setting,
             int defaultValue)

Returns the int value that matches the given setting. If none if found, the default value is used.

Parameters:

setting - The setting name

defaultValue - The default value to be used if no setting is found

Returns:

The value of the setting, or defaultValue if none is found.