| org.openrdf.sail.Sail
All known Subclasses: org.openrdf.sail.helpers.SailBase,
| Sail | | public interface Sail (Code) | | An interface for an RDF Storage And Inference Layer. RDF Sails can store RDF
statements and evaluate queries over them. Statements can be stored in named
contexts or in the null context. Contexts can be used to group sets of
statements that logically belong together, for example because they come from
the same source. Both URIs and bnodes can be used as context identifiers.
author:
Arjohn Kampman |
| addSailChangedListener | | public void addSailChangedListener(SailChangedListener listener)(Code) | | Adds the specified SailChangedListener to receive events when the data in
this Sail object changes.
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| getConnection | | public SailConnection getConnection() throws SailException(Code) | | Opens a connection on the Sail which can be used to query and update data.
Depending on how the implementation handles concurrent access, a call to
this method might block when there is another open connection on this
Sail.
throws:
SailException - If no transaction could be started, for example because the Sailis not writable. |
| getValueFactory | | public ValueFactory getValueFactory()(Code) | | Gets a ValueFactory object that can be used to create URI-, blank node-,
literal- and statement objects.
a ValueFactory object for this Sail object. |
| initialize | | public void initialize() throws SailException(Code) | | Initializes the Sail. Care should be taken that required initialization
parameters have been set before this method is called. Please consult the
specific Sail implementation for information about the relevant
parameters.
throws:
SailException - If the Sail could not be initialized. |
| isWritable | | public boolean isWritable() throws SailException(Code) | | Checks whether this Sail object is writable, i.e. if the data contained in
this Sail object can be changed.
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| removeSailChangedListener | | public void removeSailChangedListener(SailChangedListener listener)(Code) | | Removes the specified SailChangedListener so that it no longer receives
events from this Sail object.
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| setDataDir | | public void setDataDir(File dataDir)(Code) | | |
| shutDown | | public void shutDown() throws SailException(Code) | | Shuts down the Sail, giving it the opportunity to synchronize any stale
data. Care should be taken that all initialized Sails are being shut down
before an application exits to avoid potential loss of data. Once shut
down, a Sail can no longer be used until it is re-initialized.
throws:
SailException - If the Sail object encountered an error or unexpected situationinternally. |
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