Class PlannerBasedInvocationHandler

java.lang.Object

dev.langchain4j.agentic.internal.PlannerBasedInvocationHandler

All Implemented Interfaces:

InternalAgent, AgentInstance, InvocationHandler

public class PlannerBasedInvocationHandler
extends Object
implements InvocationHandler, InternalAgent

Field Summary

Fields

Modifier and Type	Field	Description
protected AgentListener	agentListener

Constructor Summary

Constructors

Constructor	Description
PlannerBasedInvocationHandler(AbstractServiceBuilder<?,?> service, Supplier<Planner> plannerSupplier)

Method Summary

Modifier and Type	Method	Description
AgentCondition	activationCondition()	The condition under which this agent runs when it is invoked as a subagent, or null when it always runs.
String	agentId()
boolean	allowChatMemory()
boolean	allowStreamingOutput()
void	appendId(String idSuffix)
List<AgentArgument>	arguments()
<T extends AgentInstance> T	as(Class<T> agentInstanceClass)
boolean	async()
boolean	compensateOnError()
String	description()
void	enableCrossAgentCompensation()
Object	invoke(Object proxy, Method method, Object[] args)
AgentListener	listener()
String	name()
String	outputKey()
Type	outputType()
AgentInstance	parent()
Class<? extends Planner>	plannerType()
void	registerInheritedParentListener(AgentListener parentListener)
void	setParent(InternalAgent parent)
List<AgentInstance>	subagents()
AgenticSystemTopology	topology()
String	toString()
Class<?>	type()
AgenticScopeOwner	withAgenticScope(DefaultAgenticScope agenticScope)

Methods inherited from class Object

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

Methods inherited from interface AgentInstance

leaf, optional

Methods inherited from interface InternalAgent

setAgentId

Field Details

agentListener

protected AgentListener agentListener

Constructor Details

PlannerBasedInvocationHandler

public PlannerBasedInvocationHandler(AbstractServiceBuilder<?,?> service,
 Supplier<Planner> plannerSupplier)

Method Details

withAgenticScope

public AgenticScopeOwner withAgenticScope(DefaultAgenticScope agenticScope)

invoke

public Object invoke(Object proxy,
 Method method,
 Object[] args)
              throws Exception

Specified by:

invoke in interface InvocationHandler

Throws:

Exception

toString

public String toString()

Overrides:

toString in class Object

type

public Class<?> type()

Specified by:

type in interface AgentInstance

plannerType

public Class<? extends Planner> plannerType()

Specified by:

plannerType in interface AgentInstance

name

public String name()

Specified by:

name in interface AgentInstance

agentId

public String agentId()

Specified by:

agentId in interface AgentInstance

description

public String description()

Specified by:

description in interface AgentInstance

outputType

public Type outputType()

Specified by:

outputType in interface AgentInstance

outputKey

public String outputKey()

Specified by:

outputKey in interface AgentInstance

async

public boolean async()

Specified by:

async in interface AgentInstance

activationCondition

public AgentCondition activationCondition()

Description copied from interface: AgentInstance

The condition under which this agent runs when it is invoked as a subagent, or null when it always runs. When the condition is false, the agent is skipped: it is not invoked, it writes nothing to the AgenticScope and its parent's planner is notified of the skip. The condition is ignored when the agent is invoked directly, as the root of an agentic system.

The condition can be evaluated more than once for a single invocation, by the planner of the parent while selecting its next agents and again when the agent is invoked, so it must be cheap and free of side effects.

Specified by:

activationCondition in interface AgentInstance

arguments

public List<AgentArgument> arguments()

Specified by:

arguments in interface AgentInstance

parent

public AgentInstance parent()

Specified by:

parent in interface AgentInstance

compensateOnError

public boolean compensateOnError()

Specified by:

compensateOnError in interface InternalAgent

enableCrossAgentCompensation

public void enableCrossAgentCompensation()

Specified by:

enableCrossAgentCompensation in interface InternalAgent

setParent

public void setParent(InternalAgent parent)

Specified by:

setParent in interface InternalAgent

registerInheritedParentListener

public void registerInheritedParentListener(AgentListener parentListener)

Specified by:

registerInheritedParentListener in interface InternalAgent

allowStreamingOutput

public boolean allowStreamingOutput()

Specified by:

allowStreamingOutput in interface InternalAgent

allowChatMemory

public boolean allowChatMemory()

Specified by:

allowChatMemory in interface InternalAgent

appendId

public void appendId(String idSuffix)

Specified by:

appendId in interface InternalAgent

subagents

public List<AgentInstance> subagents()

Specified by:

subagents in interface AgentInstance

topology

public AgenticSystemTopology topology()

Specified by:

topology in interface AgentInstance

as

public <T extends AgentInstance> T as(Class<T> agentInstanceClass)

Specified by:

as in interface AgentInstance

listener

public AgentListener listener()

Specified by:

listener in interface InternalAgent