oracle.javatools.db.ora

Enum LOBDescriptor.LOBCache

java.lang.Object

java.lang.Enum<LOBDescriptor.LOBCache>

oracle.javatools.db.ora.LOBDescriptor.LOBCache

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<LOBDescriptor.LOBCache>

Enclosing class:

LOBDescriptor

public static enum LOBDescriptor.LOBCache
extends java.lang.Enum<LOBDescriptor.LOBCache>

The CACHE clauses indicates how Oracle Database should store blocks in the buffer cache.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CACHE Specifies that the blocks retrieved for this LOB are placed at the most recently used end of the least recently used (LRU) list in the buffer cache when a full table scan is performed.
CACHE_READS Specifies that LOB values are brought into the buffer cache only during read operations but not during write operations.
NOCACHE Specifies that the blocks retrieved for this LOB are placed at the least recently used end of the LRU list in the buffer cache when a full table scan is performed.

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString() Gets the DDL for the LOB cache clause.
static LOBDescriptor.LOBCache	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static LOBDescriptor.LOBCache[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CACHE

public static final LOBDescriptor.LOBCache CACHE

Specifies that the blocks retrieved for this LOB are placed at the most recently used end of the least recently used (LRU) list in the buffer cache when a full table scan is performed.

NOCACHE

public static final LOBDescriptor.LOBCache NOCACHE

Specifies that the blocks retrieved for this LOB are placed at the least recently used end of the LRU list in the buffer cache when a full table scan is performed. NOCACHE is the default for LOB storage.

CACHE_READS

public static final LOBDescriptor.LOBCache CACHE_READS

Specifies that LOB values are brought into the buffer cache only during read operations but not during write operations.

Method Detail

values

public static LOBDescriptor.LOBCache[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (LOBDescriptor.LOBCache c : LOBDescriptor.LOBCache.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static LOBDescriptor.LOBCache valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

toString

public java.lang.String toString()

Gets the DDL for the LOB cache clause. This is not necessarily the enum name.

Overrides:

toString in class java.lang.Enum<LOBDescriptor.LOBCache>