com.espertech.esper.client

Enum ConfigurationDBRef.MetadataOriginEnum

java.lang.Object

java.lang.Enum<ConfigurationDBRef.MetadataOriginEnum>

com.espertech.esper.client.ConfigurationDBRef.MetadataOriginEnum

All Implemented Interfaces:

Serializable, Comparable<ConfigurationDBRef.MetadataOriginEnum>

Enclosing class:

ConfigurationDBRef

public static enum ConfigurationDBRef.MetadataOriginEnum
extends Enum<ConfigurationDBRef.MetadataOriginEnum>

Indicates how the engine retrieves metadata about a statement's output columns.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DEFAULT By default, get output column metadata from the prepared statement, unless an Oracle connection class is used in which case the behavior is SAMPLE.
METADATA Always get output column metadata from the prepared statement regardless of what driver or connection is used.
SAMPLE Obtain output column metadata by executing a sample query statement at statement compilation time.

Method Summary

Modifier and Type	Method and Description
static ConfigurationDBRef.MetadataOriginEnum	valueOf(String name) Returns the enum constant of this type with the specified name.
static ConfigurationDBRef.MetadataOriginEnum[]	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, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DEFAULT

public static final ConfigurationDBRef.MetadataOriginEnum DEFAULT

By default, get output column metadata from the prepared statement, unless an Oracle connection class is used in which case the behavior is SAMPLE.

METADATA

public static final ConfigurationDBRef.MetadataOriginEnum METADATA

Always get output column metadata from the prepared statement regardless of what driver or connection is used.

SAMPLE

public static final ConfigurationDBRef.MetadataOriginEnum SAMPLE

Obtain output column metadata by executing a sample query statement at statement compilation time. The sample statement returns the same columns as the statement executed during event processing. See the documentation for the generation or specication of the sample query statement.

Method Detail

values

public static ConfigurationDBRef.MetadataOriginEnum[] 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 (ConfigurationDBRef.MetadataOriginEnum c : ConfigurationDBRef.MetadataOriginEnum.values())
    System.out.println(c);

Returns:

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

valueOf

public static ConfigurationDBRef.MetadataOriginEnum valueOf(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:

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

NullPointerException - if the argument is null