com.linkedin.paldb.impl

Class ReaderImpl

java.lang.Object

com.linkedin.paldb.impl.ReaderImpl

All Implemented Interfaces:

StoreReader

public final class ReaderImpl
extends java.lang.Object
implements StoreReader

Store reader implementation.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the store reader and free resources.
<K> K	get(java.lang.Object key) Gets the value for key or null if not found.
<K> K	get(java.lang.Object key, K defaultValue) Gets the value for key or defaultValue if not found.
<K> K[]	getArray(java.lang.Object key) Gets the object array value for key or null if not found.
<K> K[]	getArray(java.lang.Object key, K[] defaultValue) Gets the object array value for key or defaultValue if not found.
boolean	getBoolean(java.lang.Object key) Gets the boolean value for key.
boolean	getBoolean(java.lang.Object key, boolean defaultValue) Gets the boolean value for key or defaultValue if not found.
boolean[]	getBooleanArray(java.lang.Object key) Gets the boolean array value for key.
boolean[]	getBooleanArray(java.lang.Object key, boolean[] defaultValue) Gets the boolean array value for key or defaultValue if not found.
byte	getByte(java.lang.Object key) Gets the byte value for key.
byte	getByte(java.lang.Object key, byte defaultValue) Gets the byte value for key or defaultValue if not found.
byte[]	getByteArray(java.lang.Object key) Gets the byte array value for key.
byte[]	getByteArray(java.lang.Object key, byte[] defaultValue) Gets the byte array value for key or defaultValue if not found.
char	getChar(java.lang.Object key) Gets the char value for key.
char	getChar(java.lang.Object key, char defaultValue) Gets the char value for key or defaultValue if not found.
char[]	getCharArray(java.lang.Object key) Gets the char array value for key.
char[]	getCharArray(java.lang.Object key, char[] defaultValue) Gets the char array value for key or defaultValue if not found.
Configuration	getConfiguration() Returns the reader's configuration.
double	getDouble(java.lang.Object key) Gets the double value for key.
double	getDouble(java.lang.Object key, double defaultValue) Gets the double value for key or defaultValue if not found.
double[]	getDoubleArray(java.lang.Object key) Gets the double array value for key.
double[]	getDoubleArray(java.lang.Object key, double[] defaultValue) Gets the double array value for key or defaultValue if not found.
java.io.File	getFile() Returns the store file.
float	getFloat(java.lang.Object key) Gets the float value for key.
float	getFloat(java.lang.Object key, float defaultValue) Gets the float value for key or defaultValue if not found.
float[]	getFloatArray(java.lang.Object key) Gets the float array value for key.
float[]	getFloatArray(java.lang.Object key, float[] defaultValue) Gets the float array value for key or defaultValue if not found.
int	getInt(java.lang.Object key) Gets the int value for key.
int	getInt(java.lang.Object key, int defaultValue) Gets the int value for key or defaultValue if not found.
int[]	getIntArray(java.lang.Object key) Gets the int array value for key.
int[]	getIntArray(java.lang.Object key, int[] defaultValue) Gets the int array value for key or defaultValue if not found.
long	getLong(java.lang.Object key) Gets the long value for key.
long	getLong(java.lang.Object key, long defaultValue) Gets the long value for key or defaultValue if not found.
long[]	getLongArray(java.lang.Object key) Gets the long array value for key.
long[]	getLongArray(java.lang.Object key, long[] defaultValue) Gets the long array value for key or defaultValue if not found.
short	getShort(java.lang.Object key) Gets the short value for key.
short	getShort(java.lang.Object key, short defaultValue) Gets the short value for key or defaultValue if not found.
short[]	getShortArray(java.lang.Object key) Gets the short array value for key.
short[]	getShortArray(java.lang.Object key, short[] defaultValue) Gets the short array value for key or defaultValue if not found.
java.lang.String	getString(java.lang.Object key) Gets the string value for key or null if not found.
java.lang.String	getString(java.lang.Object key, java.lang.String defaultValue) Gets the string value for key or defaultValue if not found.
java.lang.String[]	getStringArray(java.lang.Object key) Gets the string array value for key or null if not found.
java.lang.String[]	getStringArray(java.lang.Object key, java.lang.String[] defaultValue) Gets the string array value for key or defaultValue if not found.
<K,V> java.lang.Iterable<java.util.Map.Entry<K,V>>	iterable() Gets the store iterable.
<K> java.lang.Iterable<K>	keys() Gets the store keys iterable.
long	size() Returns the number of keys in the store.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

close

public void close()

Description copied from interface: StoreReader

Closes the store reader and free resources.

A closed reader can't be reopened.

Specified by:

close in interface StoreReader

size

public long size()

Description copied from interface: StoreReader

Returns the number of keys in the store.

Specified by:

size in interface StoreReader

Returns:

key count

getConfiguration

public Configuration getConfiguration()

Description copied from interface: StoreReader

Returns the reader's configuration.

Specified by:

getConfiguration in interface StoreReader

Returns:

the store configuration

getFile

public java.io.File getFile()

Description copied from interface: StoreReader

Returns the store file.

Specified by:

getFile in interface StoreReader

Returns:

file

get

public <K> K get(java.lang.Object key)

Description copied from interface: StoreReader

Gets the value for key or null if not found.

Specified by:

get in interface StoreReader

Type Parameters:

K - return type

Parameters:

key - key to fetch

Returns:

value or null if not found

get

public <K> K get(java.lang.Object key,
                 K defaultValue)

Description copied from interface: StoreReader

Gets the value for key or defaultValue if not found.

Specified by:

get in interface StoreReader

Type Parameters:

K - return type

Parameters:

key - key to fetch

defaultValue - default value

Returns:

value of defaultValue if not found

getInt

public int getInt(java.lang.Object key,
                  int defaultValue)

Description copied from interface: StoreReader

Gets the int value for key or defaultValue if not found.

Specified by:

getInt in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

int value or defaultValue if not found

getInt

public int getInt(java.lang.Object key)
           throws NotFoundException

Description copied from interface: StoreReader

Gets the int value for key.

Specified by:

getInt in interface StoreReader

Parameters:

key - key to fetch

Returns:

int value

Throws:

NotFoundException - if not found

getLong

public long getLong(java.lang.Object key,
                    long defaultValue)

Description copied from interface: StoreReader

Gets the long value for key or defaultValue if not found.

Specified by:

getLong in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

long value or defaultValue if not found

getLong

public long getLong(java.lang.Object key)
             throws NotFoundException

Description copied from interface: StoreReader

Gets the long value for key.

Specified by:

getLong in interface StoreReader

Parameters:

key - key to fetch

Returns:

long value

Throws:

NotFoundException - if not found

getBoolean

public boolean getBoolean(java.lang.Object key,
                          boolean defaultValue)

Description copied from interface: StoreReader

Gets the boolean value for key or defaultValue if not found.

Specified by:

getBoolean in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

boolean value or defaultValue if not found

getBoolean

public boolean getBoolean(java.lang.Object key)
                   throws NotFoundException

Description copied from interface: StoreReader

Gets the boolean value for key.

Specified by:

getBoolean in interface StoreReader

Parameters:

key - key to fetch

Returns:

boolean value

Throws:

NotFoundException - if not found

getFloat

public float getFloat(java.lang.Object key,
                      float defaultValue)

Description copied from interface: StoreReader

Gets the float value for key or defaultValue if not found.

Specified by:

getFloat in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

float value or defaultValue if not found

getFloat

public float getFloat(java.lang.Object key)
               throws NotFoundException

Description copied from interface: StoreReader

Gets the float value for key.

Specified by:

getFloat in interface StoreReader

Parameters:

key - key to fetch

Returns:

float value

Throws:

NotFoundException - if not found

getDouble

public double getDouble(java.lang.Object key,
                        double defaultValue)

Description copied from interface: StoreReader

Gets the double value for key or defaultValue if not found.

Specified by:

getDouble in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

double value or defaultValue if not found

getDouble

public double getDouble(java.lang.Object key)
                 throws NotFoundException

Description copied from interface: StoreReader

Gets the double value for key.

Specified by:

getDouble in interface StoreReader

Parameters:

key - key to fetch

Returns:

double value

Throws:

NotFoundException - if not found

getShort

public short getShort(java.lang.Object key,
                      short defaultValue)

Description copied from interface: StoreReader

Gets the short value for key or defaultValue if not found.

Specified by:

getShort in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

short value or defaultValue if not found

getShort

public short getShort(java.lang.Object key)
               throws NotFoundException

Description copied from interface: StoreReader

Gets the short value for key.

Specified by:

getShort in interface StoreReader

Parameters:

key - key to fetch

Returns:

short value

Throws:

NotFoundException - if not found

getByte

public byte getByte(java.lang.Object key,
                    byte defaultValue)

Description copied from interface: StoreReader

Gets the byte value for key or defaultValue if not found.

Specified by:

getByte in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

byte value or defaultValue if not found

getByte

public byte getByte(java.lang.Object key)
             throws NotFoundException

Description copied from interface: StoreReader

Gets the byte value for key.

Specified by:

getByte in interface StoreReader

Parameters:

key - key to fetch

Returns:

byte value

Throws:

NotFoundException - if not found

getString

public java.lang.String getString(java.lang.Object key,
                                  java.lang.String defaultValue)

Description copied from interface: StoreReader

Gets the string value for key or defaultValue if not found.

Specified by:

getString in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

string value or defaultValue if not found

getString

public java.lang.String getString(java.lang.Object key)

Description copied from interface: StoreReader

Gets the string value for key or null if not found.

Specified by:

getString in interface StoreReader

Parameters:

key - key to fetch

Returns:

string value

getChar

public char getChar(java.lang.Object key,
                    char defaultValue)

Description copied from interface: StoreReader

Gets the char value for key or defaultValue if not found.

Specified by:

getChar in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

char value or defaultValue if not found

getChar

public char getChar(java.lang.Object key)
             throws NotFoundException

Description copied from interface: StoreReader

Gets the char value for key.

Specified by:

getChar in interface StoreReader

Parameters:

key - key to fetch

Returns:

char value

Throws:

NotFoundException - if not found

getArray

public <K> K[] getArray(java.lang.Object key)

Description copied from interface: StoreReader

Gets the object array value for key or null if not found.

Specified by:

getArray in interface StoreReader

Type Parameters:

K - return type

Parameters:

key - key to fetch

Returns:

object array value or null if not found

getArray

public <K> K[] getArray(java.lang.Object key,
                        K[] defaultValue)

Description copied from interface: StoreReader

Gets the object array value for key or defaultValue if not found.

Specified by:

getArray in interface StoreReader

Type Parameters:

K - return type

Parameters:

key - key to fetch

defaultValue - default value

Returns:

object array value or defaultValue if not found

getIntArray

public int[] getIntArray(java.lang.Object key,
                         int[] defaultValue)

Description copied from interface: StoreReader

Gets the int array value for key or defaultValue if not found.

Specified by:

getIntArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

int array value or defaultValue if not found

getIntArray

public int[] getIntArray(java.lang.Object key)
                  throws NotFoundException

Description copied from interface: StoreReader

Gets the int array value for key.

Specified by:

getIntArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

int array value

Throws:

NotFoundException - if not found

getLongArray

public long[] getLongArray(java.lang.Object key,
                           long[] defaultValue)

Description copied from interface: StoreReader

Gets the long array value for key or defaultValue if not found.

Specified by:

getLongArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

long array value or defaultValue if not found

getLongArray

public long[] getLongArray(java.lang.Object key)
                    throws NotFoundException

Description copied from interface: StoreReader

Gets the long array value for key.

Specified by:

getLongArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

long array value

Throws:

NotFoundException - if not found

getBooleanArray

public boolean[] getBooleanArray(java.lang.Object key,
                                 boolean[] defaultValue)

Description copied from interface: StoreReader

Gets the boolean array value for key or defaultValue if not found.

Specified by:

getBooleanArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

boolean array value or defaultValue if not found

getBooleanArray

public boolean[] getBooleanArray(java.lang.Object key)
                          throws NotFoundException

Description copied from interface: StoreReader

Gets the boolean array value for key.

Specified by:

getBooleanArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

boolean array value

Throws:

NotFoundException - if not found

getFloatArray

public float[] getFloatArray(java.lang.Object key,
                             float[] defaultValue)

Description copied from interface: StoreReader

Gets the float array value for key or defaultValue if not found.

Specified by:

getFloatArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

float array value or defaultValue if not found

getFloatArray

public float[] getFloatArray(java.lang.Object key)
                      throws NotFoundException

Description copied from interface: StoreReader

Gets the float array value for key.

Specified by:

getFloatArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

float array value

Throws:

NotFoundException - if not found

getDoubleArray

public double[] getDoubleArray(java.lang.Object key,
                               double[] defaultValue)

Description copied from interface: StoreReader

Gets the double array value for key or defaultValue if not found.

Specified by:

getDoubleArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

double array value or defaultValue if not found

getDoubleArray

public double[] getDoubleArray(java.lang.Object key)
                        throws NotFoundException

Description copied from interface: StoreReader

Gets the double array value for key.

Specified by:

getDoubleArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

double array value

Throws:

NotFoundException - if not found

getShortArray

public short[] getShortArray(java.lang.Object key,
                             short[] defaultValue)

Description copied from interface: StoreReader

Gets the short array value for key or defaultValue if not found.

Specified by:

getShortArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

short array value or defaultValue if not found

getShortArray

public short[] getShortArray(java.lang.Object key)
                      throws NotFoundException

Description copied from interface: StoreReader

Gets the short array value for key.

Specified by:

getShortArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

short array value

Throws:

NotFoundException - if not found

getByteArray

public byte[] getByteArray(java.lang.Object key,
                           byte[] defaultValue)

Description copied from interface: StoreReader

Gets the byte array value for key or defaultValue if not found.

Specified by:

getByteArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

byte array value or defaultValue if not found

getByteArray

public byte[] getByteArray(java.lang.Object key)
                    throws NotFoundException

Description copied from interface: StoreReader

Gets the byte array value for key.

Specified by:

getByteArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

byte array value

Throws:

NotFoundException - if not found

getStringArray

public java.lang.String[] getStringArray(java.lang.Object key,
                                         java.lang.String[] defaultValue)

Description copied from interface: StoreReader

Gets the string array value for key or defaultValue if not found.

Specified by:

getStringArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

string array value or defaultValue if not found

getStringArray

public java.lang.String[] getStringArray(java.lang.Object key)

Description copied from interface: StoreReader

Gets the string array value for key or null if not found.

Specified by:

getStringArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

string array value or null if not found

getCharArray

public char[] getCharArray(java.lang.Object key,
                           char[] defaultValue)

Description copied from interface: StoreReader

Gets the char array value for key or defaultValue if not found.

Specified by:

getCharArray in interface StoreReader

Parameters:

key - key to fetch

defaultValue - default value

Returns:

char array value or defaultValue if not found

getCharArray

public char[] getCharArray(java.lang.Object key)
                    throws NotFoundException

Description copied from interface: StoreReader

Gets the char array value for key.

Specified by:

getCharArray in interface StoreReader

Parameters:

key - key to fetch

Returns:

char array value

Throws:

NotFoundException - if not found

iterable

public <K,V> java.lang.Iterable<java.util.Map.Entry<K,V>> iterable()

Description copied from interface: StoreReader

Gets the store iterable.

Note that entry objects are reused.

Specified by:

iterable in interface StoreReader

Type Parameters:

K - key type

V - value type

Returns:

iterable over store

keys

public <K> java.lang.Iterable<K> keys()

Description copied from interface: StoreReader

Gets the store keys iterable.

Specified by:

keys in interface StoreReader

Type Parameters:

K - key type

Returns:

iterable over keys