org.apache.metamodel.neo4j

Class Neo4jDataContext

java.lang.Object

org.apache.metamodel.AbstractDataContext

org.apache.metamodel.QueryPostprocessDataContext

org.apache.metamodel.neo4j.Neo4jDataContext

All Implemented Interfaces:

HasReadTypeConverters, DataContext, DocumentSourceProvider

public class Neo4jDataContext
extends QueryPostprocessDataContext
implements DataContext, DocumentSourceProvider

DataContext implementation for Neo4j

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_PORT
static String	SCHEMA_NAME

Fields inherited from class org.apache.metamodel.QueryPostprocessDataContext

INFORMATION_SCHEMA_NAME, SYSTEM_PROPERTY_CREATE_DEFAULT_TABLE_ALIAS

Constructor Summary

Constructors

Constructor and Description
Neo4jDataContext(String hostname, int port, org.apache.http.impl.client.CloseableHttpClient httpClient)
Neo4jDataContext(String hostname, int port, org.apache.http.impl.client.CloseableHttpClient httpClient, SimpleTableDef... tableDefs)
Neo4jDataContext(String hostname, int port, org.apache.http.impl.client.CloseableHttpClient httpClient, String serviceRoot)
Neo4jDataContext(String hostname, int port, org.apache.http.impl.client.CloseableHttpClient httpClient, String serviceRoot, SimpleTableDef... tableDefs)
Neo4jDataContext(String hostname, int port, String username, String password)
Neo4jDataContext(String hostname, int port, String username, String password, SimpleTableDef... tableDefs)
Neo4jDataContext(String hostname, int port, String username, String password, String serviceRoot)
Neo4jDataContext(String hostname, int port, String username, String password, String serviceRoot, SimpleTableDef... tableDefs)

Method Summary

Modifier and Type	Method and Description
SimpleTableDef[]	detectTableDefs()
protected Number	executeCountQuery(Table table, List<FilterItem> whereItems, boolean functionApproximationAllowed)
protected String	getDefaultSchemaName()
DocumentSource	getDocumentSourceForTable(String sourceCollectionName)
protected Schema	getMainSchema()
protected String	getMainSchemaName()
DocumentSource	getMixedDocumentSourceForSampling()
protected DataSet	materializeMainSchemaTable(Table table, List<Column> columns, int maxRows)
protected DataSet	materializeMainSchemaTable(Table table, List<Column> columns, int firstRow, int maxRows)

Methods inherited from class org.apache.metamodel.QueryPostprocessDataContext

addConverter, executePrimaryKeyLookupQuery, executeQuery, getSchemaByNameInternal, getSchemaNamesInternal, isMainSchemaTable, isScalarFunctionMaterialized, materializeFromItem, materializeMainSchemaTable, materializeMainSchemaTableSelect, materializeTable

Methods inherited from class org.apache.metamodel.AbstractDataContext

compileQuery, executeQuery, executeQuery, getColumnByQualifiedLabel, getDefaultSchema, getSchemaByName, getSchemaNames, getSchemas, getTableByQualifiedLabel, isQualifiedPathDelim, onSchemaCacheRefreshed, parseQuery, query, refreshSchemas

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.metamodel.DataContext

compileQuery, executeQuery, executeQuery, executeQuery, getColumnByQualifiedLabel, getDefaultSchema, getSchemaByName, getSchemaNames, getSchemas, getTableByQualifiedLabel, parseQuery, query, refreshSchemas

Field Detail

SCHEMA_NAME

public static final String SCHEMA_NAME

See Also:

Constant Field Values

DEFAULT_PORT

public static final int DEFAULT_PORT

See Also:

Constant Field Values

Constructor Detail

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        String username,
                        String password,
                        SimpleTableDef... tableDefs)

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        String username,
                        String password,
                        String serviceRoot,
                        SimpleTableDef... tableDefs)

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        String username,
                        String password)

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        String username,
                        String password,
                        String serviceRoot)

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        org.apache.http.impl.client.CloseableHttpClient httpClient)

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        org.apache.http.impl.client.CloseableHttpClient httpClient,
                        String serviceRoot)

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        org.apache.http.impl.client.CloseableHttpClient httpClient,
                        SimpleTableDef... tableDefs)

Neo4jDataContext

public Neo4jDataContext(String hostname,
                        int port,
                        org.apache.http.impl.client.CloseableHttpClient httpClient,
                        String serviceRoot,
                        SimpleTableDef... tableDefs)

Method Detail

getDefaultSchemaName

protected String getDefaultSchemaName()
                               throws MetaModelException

Overrides:

getDefaultSchemaName in class QueryPostprocessDataContext

Throws:

MetaModelException

getMainSchema

protected Schema getMainSchema()
                        throws MetaModelException

Specified by:

getMainSchema in class QueryPostprocessDataContext

Throws:

MetaModelException

getMainSchemaName

protected String getMainSchemaName()
                            throws MetaModelException

Specified by:

getMainSchemaName in class QueryPostprocessDataContext

Throws:

MetaModelException

detectTableDefs

public SimpleTableDef[] detectTableDefs()

materializeMainSchemaTable

protected DataSet materializeMainSchemaTable(Table table,
                                             List<Column> columns,
                                             int firstRow,
                                             int maxRows)

Overrides:

materializeMainSchemaTable in class QueryPostprocessDataContext

materializeMainSchemaTable

protected DataSet materializeMainSchemaTable(Table table,
                                             List<Column> columns,
                                             int maxRows)

Specified by:

materializeMainSchemaTable in class QueryPostprocessDataContext

executeCountQuery

protected Number executeCountQuery(Table table,
                                   List<FilterItem> whereItems,
                                   boolean functionApproximationAllowed)

Overrides:

executeCountQuery in class QueryPostprocessDataContext

getMixedDocumentSourceForSampling

public DocumentSource getMixedDocumentSourceForSampling()

Specified by:

getMixedDocumentSourceForSampling in interface DocumentSourceProvider

getDocumentSourceForTable

public DocumentSource getDocumentSourceForTable(String sourceCollectionName)

Specified by:

getDocumentSourceForTable in interface DocumentSourceProvider