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org.drools.spi
Interface Tuple

All Known Implementing Classes:: ReteTuple, Token

public interface Tuple

Partial matches are propagated through the Rete network as Tuples. Each Tuple Is able to return the FactHandleImpl members of the partial match for the requested column. The column refers to the index position of the FactHandleImpl in the underlying implementation.

See Also:: FactHandle;

Method Summary

boolean dependsOn(FactHandle handle)


InternalFactHandle get(Declaration declaration)
          Returns the FactHandle for the given Declaration, which in turn specifcy the Column that they depend on.

InternalFactHandle get(int column)
          Returns the FactHandle for the given column index.

InternalFactHandle[] getFactHandles()


long getRecency()


void setActivation(Activation activation)

Method Summary
`boolean`	`dependsOn(FactHandle handle)`
`InternalFactHandle`	`get(Declaration declaration)` Returns the `FactHandle` for the given `Declaration`, which in turn specifcy the `Column` that they depend on.
`InternalFactHandle`	`get(int column)` Returns the `FactHandle` for the given column index.
`InternalFactHandle[]`	`getFactHandles()`
`long`	`getRecency()`
`void`	`setActivation(Activation activation)`

Method Detail

get

InternalFactHandle get(int column)

Returns the FactHandle for the given column index. If the column is empty It returns null.

Parameters:: column - The index of the column from which the FactHandleImpl is to be returned
Returns:: The FactHandle

get

InternalFactHandle get(Declaration declaration)

Returns the FactHandle for the given Declaration, which in turn specifcy the Column that they depend on.

Parameters:: declaration - The Declaration which specifies the Column
Returns:: The FactHandle

getFactHandles

InternalFactHandle[] getFactHandles()

getRecency

long getRecency()

dependsOn

boolean dependsOn(FactHandle handle)

setActivation

void setActivation(Activation activation)