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- All Superinterfaces:
- Comparable<Statement>, Serializable
- All Known Subinterfaces:
- Statement.ContextNodeStatement, Statement.LiteralStatement, Statement.RelationStatement
- All Known Implementing Classes:
- AbstractStatement, AbstractStatement.AbstractContextNodeStatement, AbstractStatement.AbstractLiteralStatement, AbstractStatement.AbstractRelationStatement
public interface Statement extends Serializable, Comparable<Statement>
This interface represents a statement in an XDI graph. A statement consists of a subject, predicate and object.- Author:
- markus
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Nested Class Summary
Nested Classes Modifier and Type Interface and Description static interfaceStatement.ContextNodeStatementstatic interfaceStatement.LiteralStatementstatic interfaceStatement.RelationStatement
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Method Summary
Methods Modifier and Type Method and Description voiddelete()Delete the statement.GraphgetGraph()Returns the graph that contains this statement.ObjectgetObject()Gets the object of this statement.ObjectgetPredicate()Gets the predicate of this statement.XDIAddressgetSubject()Gets the subject of this statement.XDIStatementgetXDIStatement()Expresses the statement as an XDI statement in the form subject/predicate/objectbooleanisImplied()Checks if this statement is implied by other statements in the graph.-
Methods inherited from interface java.lang.Comparable
compareTo
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Method Detail
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getSubject
XDIAddress getSubject()
Gets the subject of this statement.- Returns:
- A subject.
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getPredicate
Object getPredicate()
Gets the predicate of this statement.- Returns:
- A predicate.
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getObject
Object getObject()
Gets the object of this statement.- Returns:
- An object.
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getGraph
Graph getGraph()
Returns the graph that contains this statement.- Returns:
- The graph that contains this statement.
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isImplied
boolean isImplied()
Checks if this statement is implied by other statements in the graph.- Returns:
- True, if this statement is implied by other statements in the graph.
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delete
void delete()
Delete the statement.
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getXDIStatement
XDIStatement getXDIStatement()
Expresses the statement as an XDI statement in the form subject/predicate/object- Returns:
- An XDI statement.
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