com.graphaware.tx.event.improved.api

Class FilteredTransactionData

java.lang.Object

com.graphaware.tx.event.improved.data.BaseImprovedTransactionData

com.graphaware.tx.event.improved.api.FilteredTransactionData

All Implemented Interfaces:

Wrapper<org.neo4j.graphdb.event.TransactionData>, ImprovedTransactionData, TransactionDataContainer, TransactionDataWrapper

public class FilteredTransactionData
extends BaseImprovedTransactionData
implements ImprovedTransactionData, TransactionDataContainer

ImprovedTransactionData with filtering capabilities defined by InclusionPolicies, delegating to FilteredNodeTransactionData and FilteredRelationshipTransactionData.

Results of methods returning Collections and Maps will be filtered. boolean and single object returning methods will always return the full truth no matter the policies. So for example:

BaseImprovedTransactionData.getAllCreatedNodes() can return 5 nodes, but BaseImprovedTransactionData.hasBeenCreated(org.neo4j.graphdb.Node) can return true for more of them, as it ignores the filtering.

When traversing the graph using an object returned by this API (such as FilteredNode), nodes, properties, and relationships not included by the InclusionPolicies will be excluded. The only exception to this are relationship start and end nodes - they are returned even if they would normally be filtered out. This is a design decision in order to honor the requirement that relationships must have start and end node.

Constructor Summary

Constructors

Constructor and Description
FilteredTransactionData(TransactionDataContainer transactionDataContainer, InclusionPolicies inclusionPolicies) Construct a new filtered transaction data.

Method Summary

Modifier and Type	Method and Description
NodeTransactionData	getNodeTransactionData() Get NodeTransactionData to delegate to.
RelationshipTransactionData	getRelationshipTransactionData() Get RelationshipTransactionData to delegate to.
boolean	mutationsOccurred() Have any mutations actually occurred?

Methods inherited from class com.graphaware.tx.event.improved.data.BaseImprovedTransactionData

assignedLabels, changedProperties, changedProperties, createdProperties, createdProperties, deletedProperties, deletedProperties, getAllChangedNodes, getAllChangedRelationships, getAllCreatedNodes, getAllCreatedRelationships, getAllDeletedNodes, getAllDeletedRelationships, getChanged, getChanged, getDeleted, getDeleted, getDeletedRelationships, getDeletedRelationships, getWrapped, hasBeenChanged, hasBeenChanged, hasBeenCreated, hasBeenCreated, hasBeenDeleted, hasBeenDeleted, hasLabelBeenAssigned, hasLabelBeenRemoved, hasPropertyBeenChanged, hasPropertyBeenChanged, hasPropertyBeenCreated, hasPropertyBeenCreated, hasPropertyBeenDeleted, hasPropertyBeenDeleted, mutationsToStrings, removedLabels

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.graphaware.tx.event.improved.api.ImprovedTransactionData

assignedLabels, changedProperties, changedProperties, createdProperties, createdProperties, deletedProperties, deletedProperties, getAllChangedNodes, getAllChangedRelationships, getAllCreatedNodes, getAllCreatedRelationships, getAllDeletedNodes, getAllDeletedRelationships, getChanged, getChanged, getDeleted, getDeleted, getDeletedRelationships, getDeletedRelationships, hasBeenChanged, hasBeenChanged, hasBeenCreated, hasBeenCreated, hasBeenDeleted, hasBeenDeleted, hasLabelBeenAssigned, hasLabelBeenRemoved, hasPropertyBeenChanged, hasPropertyBeenChanged, hasPropertyBeenCreated, hasPropertyBeenCreated, hasPropertyBeenDeleted, hasPropertyBeenDeleted, mutationsToStrings, removedLabels

Methods inherited from interface com.graphaware.common.wrapper.Wrapper

getWrapped

Constructor Detail

FilteredTransactionData

public FilteredTransactionData(TransactionDataContainer transactionDataContainer,
                               InclusionPolicies inclusionPolicies)

Construct a new filtered transaction data.

Parameters:

transactionDataContainer - container for original unfiltered transaction data.

inclusionPolicies - policies for filtering.

Method Detail

getNodeTransactionData

public NodeTransactionData getNodeTransactionData()

Get NodeTransactionData to delegate to.

Specified by:

getNodeTransactionData in interface TransactionDataContainer

Specified by:

getNodeTransactionData in class BaseImprovedTransactionData

Returns:

delegate.

getRelationshipTransactionData

public RelationshipTransactionData getRelationshipTransactionData()

Get RelationshipTransactionData to delegate to.

Specified by:

getRelationshipTransactionData in interface TransactionDataContainer

Specified by:

getRelationshipTransactionData in class BaseImprovedTransactionData

Returns:

delegate.

mutationsOccurred

public boolean mutationsOccurred()

Have any mutations actually occurred?

Specified by:

mutationsOccurred in interface ImprovedTransactionData

Overrides:

mutationsOccurred in class BaseImprovedTransactionData

Returns:

true iff an least one of the following method calls returns a non-empty collection: ImprovedTransactionData.getAllCreatedNodes(), ImprovedTransactionData.getAllCreatedRelationships(), ImprovedTransactionData.getAllDeletedNodes(), ImprovedTransactionData.getAllDeletedRelationships(), ImprovedTransactionData.getAllChangedNodes(), ImprovedTransactionData.getAllChangedRelationships().

See Also:

ImprovedTransactionData.mutationsOccurred()