Options

java.lang.Object
- org.apache.openejb.client.Options

```
public class Options
extends java.lang.Object
```
The purpose of this class is to provide a more strongly typed version of a java.util.Properties object. So far it is a read only view of the properties and does not set data into the underlying Properties instance.
Similar to java.util.Properties it will delegate to a "parent" instance when a property is not found. If a property is found but its value cannot be parsed as the desired data type, the parent's value is used.
By default this object will log nothing, but if a Log implementation is set the Options class will log three kinds of statements:
- When a property is not found: the property name and default value in use along with all possible values (enums only). Debug level. - When a property is found: the property name and value. Info level. - When a property value cannot be parsed: the property name and invalid value. Warn level.
Logging the user supplied values onto INFO is really nice as it shows up in the standard log output and allows us to easily see which values the user has changed from the default. It's rather impossible to diagnose issues without this information.
ENUM SETS:
Properties that accept a Set of enum values automatically accept ALL and NONE in addition to the explicitly created enum items.
Using ALL. This allows users to have an easy way to imply "all" without having to hardcode an the entire list of enum items and protects against the case where that list may grow in the future.
Using NONE. This allows users an alternative to using an empty string when explicitly specifying that none of the options should be used.
In the internal code, this allows us to have these concepts in all enum options without us having to add NONE or ALL enum items explicitly which leads to strange code.
Additionally TRUE is an alias for ALL and FALSE an alias for NONE. This allows options that used to support only true/false values to be further defined in the future without breaking compatibility.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static interface Options.Log

static class Options.NullLog

Nested Classes
Modifier and Type	Class and Description
`static interface`	`Options.Log`
`static class`	`Options.NullLog`

Constructor Summary

Constructors
Constructor and Description

Options(java.util.Properties properties)

Options(java.util.Properties properties, Options parent)

Constructors
Constructor and Description
`Options(java.util.Properties properties)`
`Options(java.util.Properties properties, Options parent)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`get(java.lang.String property, boolean defaultValue)`
`java.lang.Class`	`get(java.lang.String property, java.lang.Class defaultValue)`
`int`	`get(java.lang.String property, int defaultValue)`
`long`	`get(java.lang.String property, long defaultValue)`
`java.lang.String`	`get(java.lang.String property, java.lang.String defaultValue)`
`<T> T`	`get(java.lang.String property, T defaultValue)`
`<T extends java.lang.Enum<T>> T`	`get(java.lang.String property, T defaultValue)`
`<T extends java.lang.Enum<T>> java.util.Set<T>`	`getAll(java.lang.String property, java.lang.Class<T> enumType)`
`<T extends java.lang.Enum<T>> java.util.Set<T>`	`getAll(java.lang.String property, java.util.Set<T> defaultValue)`
`protected <T extends java.lang.Enum<T>> java.util.Set<T>`	`getAll(java.lang.String property, java.util.Set<T> defaultValue, java.lang.Class<T> enumType)`
`<T extends java.lang.Enum<T>> java.util.Set<T>`	`getAll(java.lang.String property, T... defaultValue)`
`Options.Log`	`getLogger()`
`java.util.Properties`	`getProperties()`
`boolean`	`has(java.lang.String property)`
`static java.lang.String`	`join(java.lang.String delimiter, java.lang.Object... collection)`
`<T extends java.lang.Enum<T>> java.util.Set<T>`	`logAll(java.lang.String property, java.util.Set<T> value)`
`protected static <T extends java.lang.Enum<T>> java.lang.String[]`	`lowercase(java.util.Collection<T> items)`
`protected static <T extends java.lang.Enum<T>> java.lang.String[]`	`lowercase(T... items)`
`protected static java.lang.String`	`possibleValues(java.lang.Class<? extends java.lang.Enum> enumType)`
`protected static <V extends java.lang.Enum<V>> java.lang.String`	`possibleValues(V v)`
`void`	`setLogger(Options.Log logger)`
`static <T extends java.lang.Enum<T>> T`	`valueOf(java.lang.Class<T> enumType, java.lang.String name)` Use this instead of Enum.valueOf() when you want to ensure that the the enum values are case insensitive.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Options

public Options(java.util.Properties properties)

Options

public Options(java.util.Properties properties,
               Options parent)

Method Detail

getProperties

public java.util.Properties getProperties()

setLogger

public void setLogger(Options.Log logger)

getLogger
```
public Options.Log getLogger()
```

has

public boolean has(java.lang.String property)

get

public java.lang.String get(java.lang.String property,
                            java.lang.String defaultValue)

get

public <T> T get(java.lang.String property,
                 T defaultValue)

get

public int get(java.lang.String property,
               int defaultValue)

get

public long get(java.lang.String property,
                long defaultValue)

get

public boolean get(java.lang.String property,
                   boolean defaultValue)

get

public java.lang.Class get(java.lang.String property,
                           java.lang.Class defaultValue)

get

public <T extends java.lang.Enum<T>> T get(java.lang.String property,
                                           T defaultValue)

getAll

public <T extends java.lang.Enum<T>> java.util.Set<T> getAll(java.lang.String property,
                                                             T... defaultValue)

getAll

public <T extends java.lang.Enum<T>> java.util.Set<T> getAll(java.lang.String property,
                                                             java.util.Set<T> defaultValue)

getAll

public <T extends java.lang.Enum<T>> java.util.Set<T> getAll(java.lang.String property,
                                                             java.lang.Class<T> enumType)

getAll

protected <T extends java.lang.Enum<T>> java.util.Set<T> getAll(java.lang.String property,
                                                                java.util.Set<T> defaultValue,
                                                                java.lang.Class<T> enumType)

valueOf
```
public static <T extends java.lang.Enum<T>> T valueOf(java.lang.Class<T> enumType,
                                                      java.lang.String name)
```
Use this instead of Enum.valueOf() when you want to ensure that the the enum values are case insensitive.

Type Parameters:

T - Type

Parameters:

enumType - Class

name - String

Returns:

Enum value

logAll

public <T extends java.lang.Enum<T>> java.util.Set<T> logAll(java.lang.String property,
                                                             java.util.Set<T> value)

lowercase

protected static <T extends java.lang.Enum<T>> java.lang.String[] lowercase(T... items)

lowercase

protected static <T extends java.lang.Enum<T>> java.lang.String[] lowercase(java.util.Collection<T> items)

possibleValues

protected static <V extends java.lang.Enum<V>> java.lang.String possibleValues(V v)

possibleValues

protected static java.lang.String possibleValues(java.lang.Class<? extends java.lang.Enum> enumType)

join

public static java.lang.String join(java.lang.String delimiter,
                                    java.lang.Object... collection)

Class Options

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Options

Options

Method Detail

getProperties

setLogger

getLogger

has

get

get

get

get

get

get

get

getAll

getAll

getAll

getAll

valueOf

logAll

lowercase

lowercase

possibleValues

possibleValues

join