org.jactr.core.production.condition
Class ChunkTypeCondition

java.lang.Object
  org.jactr.core.production.condition.AbstractSlotCondition
      org.jactr.core.production.condition.AbstractBufferCondition
          org.jactr.core.production.condition.ChunkTypeCondition

All Implemented Interfaces:

IBufferCondition, ICondition, ISlotContainer

Direct Known Subclasses:

ChunkCondition

public class ChunkTypeCondition
extends AbstractBufferCondition

matches the contents of a buffer to a specific chunktype and slot values

Author:

harrison

Constructor Summary

ChunkTypeCondition(java.lang.String bufferName, IChunkType chunkType)

ChunkTypeCondition(java.lang.String bufferName, IChunkType chunkType, java.util.Collection<? extends ISlot> slots)

Method Summary

int	bind(IModel model, java.util.Map<java.lang.String,java.lang.Object> variableBindings, boolean isIterative) Iteratively perform the resolution and binding for this condition.
ChunkTypeCondition	clone(IModel model, java.util.Map<java.lang.String,java.lang.Object> bindings) attempt to clone this condition before it will be bound in the instantiation phase.
IChunkType	getChunkType()
ChunkTypeRequest	getRequest()

Methods inherited from class org.jactr.core.production.condition.AbstractBufferCondition

getBufferName

Methods inherited from class org.jactr.core.production.condition.AbstractSlotCondition

addSlot, dispose, getConditionalSlots, getSlots, getSlots, removeSlot, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.jactr.core.production.condition.ICondition

dispose

Constructor Detail

ChunkTypeCondition

public ChunkTypeCondition(java.lang.String bufferName,
                          IChunkType chunkType)

ChunkTypeCondition

public ChunkTypeCondition(java.lang.String bufferName,
                          IChunkType chunkType,
                          java.util.Collection<? extends ISlot> slots)

Method Detail

clone

public ChunkTypeCondition clone(IModel model,
                                java.util.Map<java.lang.String,java.lang.Object> bindings)
                         throws CannotMatchException

Description copied from interface: ICondition

attempt to clone this condition before it will be bound in the instantiation phase. We pass the current bindings so that the condition can do an early rejection if possible.

Returns:

a writable copy of the condition that will be bound

Throws:

CannotMatchException - if there is no way this condition can be matched

getChunkType

public IChunkType getChunkType()

getRequest

public ChunkTypeRequest getRequest()

bind

public int bind(IModel model,
                java.util.Map<java.lang.String,java.lang.Object> variableBindings,
                boolean isIterative)
         throws CannotMatchException

Description copied from interface: ICondition

Iteratively perform the resolution and binding for this condition. If this condition defines any variables, they are placed into the bindings map for other conditions to exploit. Similarly, it will resolve any bindings that it needs in order to be matched. If at any point the condition determines that it cannot be matched, the exception is to be thrown. Similarly, if isIterative is false, and there are unresolved bindings, the exception should be thrown.
Otherwise, the number of unresolved bindings is returned which allows the instantiation calculation determine if another resolution round is required.

Returns:

number of unresolved variables

Throws:

CannotMatchException