hera

Class EmptyContext

java.lang.Object

hera.EmptyContext

All Implemented Interfaces:

Context

@ApiAudience.Public
 @ApiStability.Unstable
public class EmptyContext
extends java.lang.Object
implements Context

Field Summary

Fields

Modifier and Type	Field and Description
protected ChainIdHash	chainIdHash
protected Configuration	configuration
protected static Context	emptyContext
protected org.slf4j.Logger	logger
protected java.lang.String	scope
static java.lang.String	SCOPE
protected java.util.Set<Strategy>	strategies

Constructor Summary

Constructors

Constructor and Description
EmptyContext()

Method Summary

Modifier and Type	Method and Description
static Context	getInstance()
<StrategyT extends Strategy> StrategyT	getStrategy(java.lang.Class<StrategyT> strategyClass) Get a strategy whose matches type strategyClass from a context.
Context	popScope() Get a context instance without current scope.
Context	withChainIdHash(ChainIdHash chainIdHash) Make a context instance with chainIdHash.
Context	withConfiguration(Configuration configuration) Make a context instance with corresponding configuration.
Context	withKeyValue(java.lang.String key, java.lang.Object value) Make a context instance with corresponding key and a value.
Context	withoutKey(java.lang.String key) Get a context instance without configuration matching key.
<StrategyT extends Strategy> Context	withoutStrategy(java.lang.Class<StrategyT> strategy) Remove strategy from the context.
Context	withScope(java.lang.String scope) Make a context instance with scope.
Context	withStrategies(java.util.Set<Strategy> strategies) Make a context instance with corresponding strategies.
<StrategyT extends Strategy> Context	withStrategy(StrategyT strategy) Make a context instance with corresponding strategy.

Methods inherited from class java.lang.Object

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

Methods inherited from interface hera.Context

getChainIdHash, getConfiguration, getScope, getStrategies

Field Detail

SCOPE

public static final java.lang.String SCOPE

See Also:

Constant Field Values

emptyContext

protected static final Context emptyContext

logger

protected final org.slf4j.Logger logger

scope

protected final java.lang.String scope

See Also:

Constant Field Values

chainIdHash

protected final ChainIdHash chainIdHash

configuration

protected final Configuration configuration

strategies

protected final java.util.Set<Strategy> strategies

Constructor Detail

EmptyContext

public EmptyContext()

Method Detail

getInstance

public static Context getInstance()

withChainIdHash

public Context withChainIdHash(ChainIdHash chainIdHash)

Description copied from interface: Context

Make a context instance with chainIdHash.

Specified by:

withChainIdHash in interface Context

Parameters:

chainIdHash - a chain id hash

Returns:

a context instance with chainIdHash

withScope

public Context withScope(java.lang.String scope)

Description copied from interface: Context

Make a context instance with scope.

Specified by:

withScope in interface Context

Parameters:

scope - a scope

Returns:

a context instance with scope

popScope

public Context popScope()

Description copied from interface: Context

Get a context instance without current scope.

Specified by:

popScope in interface Context

Returns:

a context instance without current scope.

withKeyValue

public Context withKeyValue(java.lang.String key,
                            java.lang.Object value)

Description copied from interface: Context

Make a context instance with corresponding key and a value.

Specified by:

withKeyValue in interface Context

Parameters:

key - a key

value - a value

Returns:

a context instance with a corresponding key-value

withConfiguration

public Context withConfiguration(Configuration configuration)

Description copied from interface: Context

Make a context instance with corresponding configuration.

Specified by:

withConfiguration in interface Context

Parameters:

configuration - a configuration

Returns:

a context instance with a corresponding configuration

withoutKey

public Context withoutKey(java.lang.String key)

Description copied from interface: Context

Get a context instance without configuration matching key.

Specified by:

withoutKey in interface Context

Parameters:

key - a key

Returns:

a context instance

withStrategy

public <StrategyT extends Strategy> Context withStrategy(StrategyT strategy)

Description copied from interface: Context

Make a context instance with corresponding strategy.

Specified by:

withStrategy in interface Context

Type Parameters:

StrategyT - strategy type

Parameters:

strategy - a strategy

Returns:

a context instance with corresponding Strategy

withStrategies

public Context withStrategies(java.util.Set<Strategy> strategies)

Description copied from interface: Context

Make a context instance with corresponding strategies.

Specified by:

withStrategies in interface Context

Parameters:

strategies - new strategies

Returns:

a context instance with corresponding strategies

getStrategy

public <StrategyT extends Strategy> StrategyT getStrategy(java.lang.Class<StrategyT> strategyClass)

Description copied from interface: Context

Get a strategy whose matches type strategyClass from a context.

Specified by:

getStrategy in interface Context

Type Parameters:

StrategyT - strategy type

Parameters:

strategyClass - a strategy class

Returns:

a strategy corresponding strategyClass. Otherwise, null

withoutStrategy

public <StrategyT extends Strategy> Context withoutStrategy(java.lang.Class<StrategyT> strategy)

Description copied from interface: Context

Remove strategy from the context.

Specified by:

withoutStrategy in interface Context

Type Parameters:

StrategyT - strategy type

Parameters:

strategy - strategy to remove

Returns:

a context without corresponding Strategy