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java.lang.Object com.metamatrix.common.buffer.BufferManagerPropertyNames
public final class BufferManagerPropertyNames
This class holds constants for all the buffer manager properties.
Field Summary | |
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static java.lang.String |
ACTIVE_MEMORY_THRESHOLD
Optional property - the percent of buffer management memory that serves as a threshold for active memory management. |
static java.lang.String |
BUFFER_STORAGE_DIRECTORY
Optional property - this value specifies the location to store temporary buffers to large to fit in memory. |
static java.lang.String |
CONNECTION_DATABASE
The environment property name for the name of the metadata store database. |
static java.lang.String |
CONNECTION_DRIVER
The environment property name for the class of the driver. |
static java.lang.String |
CONNECTION_FACTORY
The environment property name for the class that is to be used for the MetadataConnectionFactory implementation. |
static java.lang.String |
CONNECTION_PASSWORD
The environment property name for the password that is to be used for connecting to the metadata store. |
static java.lang.String |
CONNECTION_POOL_MAXIMUM_AGE
The environment property name for the maximum number of milliseconds that a metadata connection may remain unused before it becomes a candidate for garbage collection. |
static java.lang.String |
CONNECTION_POOL_MAXIMUM_CONCURRENT_USERS
The environment property name for the maximum number of concurrent users of a single metadata connection. |
static java.lang.String |
CONNECTION_PROTOCOL
The environment property name for the protocol for connecting to the metadata store. |
static java.lang.String |
CONNECTION_USERNAME
The environment property name for the username that is to be used for connecting to the metadata store. |
static java.lang.String |
CONNECTOR_BATCH_SIZE
Optional property - the max size of a batch sent between connector and query service. |
static java.lang.String |
LOG_STATS_INTERVAL
Optional property - this value specifies how often the buffer statistics should be collected and logged. |
static java.lang.String |
MANAGEMENT_INTERVAL
Optional property - the period between checking whether active memory clean up should occur, in milliseconds. |
static java.lang.String |
MAX_FILE_SIZE
Optional property - this values specifies the maximum size in MegaBytes that a buffer file can reach. |
static java.lang.String |
MAX_OPEN_FILES
Optional property - this values specifies how many open file descriptors should be cached in the storage directory. |
static java.lang.String |
MEMORY_AVAILABLE
Optional property - the amount of memory (in megabytes) that buffer management should use. |
static java.lang.String |
PROCESSOR_BATCH_SIZE
Optional property - the max size of a batch sent internally within the query processor. |
static java.lang.String |
SESSION_USE_PERCENTAGE
Optional property - the percent of buffer management memory that a particular session can use. |
Method Summary |
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.lang.String MEMORY_AVAILABLE
public static final java.lang.String SESSION_USE_PERCENTAGE
public static final java.lang.String ACTIVE_MEMORY_THRESHOLD
public static final java.lang.String MANAGEMENT_INTERVAL
public static final java.lang.String CONNECTOR_BATCH_SIZE
public static final java.lang.String PROCESSOR_BATCH_SIZE
public static final java.lang.String BUFFER_STORAGE_DIRECTORY
public static final java.lang.String MAX_OPEN_FILES
public static final java.lang.String MAX_FILE_SIZE
public static final java.lang.String LOG_STATS_INTERVAL
public static final java.lang.String CONNECTION_FACTORY
public static final java.lang.String CONNECTION_DRIVER
public static final java.lang.String CONNECTION_PROTOCOL
public static final java.lang.String CONNECTION_DATABASE
public static final java.lang.String CONNECTION_USERNAME
public static final java.lang.String CONNECTION_PASSWORD
public static final java.lang.String CONNECTION_POOL_MAXIMUM_AGE
public static final java.lang.String CONNECTION_POOL_MAXIMUM_CONCURRENT_USERS
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