org.neo4j.cypher.javacompat

Class ExecutionEngine

java.lang.Object

org.neo4j.cypher.javacompat.ExecutionEngine

Deprecated.

use GraphDatabaseService.execute(String) instead.

@Deprecated
public class ExecutionEngine
extends Object

To run a Cypher query, use this class. This class construct and initialize both the cypher compiler and the cypher runtime, which is a very expensive operation so please make sure this will be constructed only once and properly reused.

Constructor Summary

Constructors

Constructor and Description
ExecutionEngine(org.neo4j.graphdb.GraphDatabaseService database) Deprecated. Creates an execution engine around the give graph database
ExecutionEngine(org.neo4j.graphdb.GraphDatabaseService database, org.neo4j.logging.LogProvider logProvider) Deprecated. Creates an execution engine around the give graph database

Method Summary

Modifier and Type	Method and Description
ExecutionResult	execute(String query) Deprecated. Executes a query and returns an iterable that contains the result set
ExecutionResult	execute(String query, Map<String,Object> params) Deprecated. Executes a query and returns an iterable that contains the result set
String	prettify(String query) Deprecated. Turns a valid Cypher query and returns it with keywords in uppercase, and new-lines in the appropriate places.
ExecutionResult	profile(String query) Deprecated. Profiles a query and returns an iterable that contains the result set.
ExecutionResult	profile(String query, Map<String,Object> params) Deprecated. Profiles a query and returns an iterable that contains the result set.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutionEngine

public ExecutionEngine(org.neo4j.graphdb.GraphDatabaseService database)

Deprecated.

Creates an execution engine around the give graph database

Parameters:

database - The database to wrap

ExecutionEngine

public ExecutionEngine(org.neo4j.graphdb.GraphDatabaseService database,
                       org.neo4j.logging.LogProvider logProvider)

Deprecated.

Creates an execution engine around the give graph database

Parameters:

database - The database to wrap

logProvider - A LogProvider for cypher-statements

Method Detail

execute

public ExecutionResult execute(String query)
                        throws org.neo4j.cypher.CypherException

Deprecated.

Executes a query and returns an iterable that contains the result set

Parameters:

query - The query to execute

Returns:

A ExecutionResult that contains the result set

Throws:

org.neo4j.cypher.SyntaxException - If the Query contains errors, a SyntaxException exception might be thrown

org.neo4j.cypher.CypherException

execute

public ExecutionResult execute(String query,
                               Map<String,Object> params)
                        throws org.neo4j.cypher.CypherException

Deprecated.

Executes a query and returns an iterable that contains the result set

Parameters:

query - The query to execute

params - Parameters for the query

Returns:

A ExecutionResult that contains the result set

Throws:

org.neo4j.cypher.SyntaxException - If the Query contains errors, a SyntaxException exception might be thrown

org.neo4j.cypher.CypherException

profile

public ExecutionResult profile(String query)
                        throws org.neo4j.cypher.CypherException

Deprecated.

Profiles a query and returns an iterable that contains the result set. Note that in order to gather profiling information, this actually executes the query as well. You can wrap a call to this in a transaction that you roll back if you don't want the query to have an actual effect on the data.

Parameters:

query - The query to profile

Returns:

A ExecutionResult that contains the result set

Throws:

org.neo4j.cypher.SyntaxException - If the Query contains errors, a SyntaxException exception might be thrown

org.neo4j.cypher.CypherException

profile

public ExecutionResult profile(String query,
                               Map<String,Object> params)
                        throws org.neo4j.cypher.CypherException

Deprecated.

Profiles a query and returns an iterable that contains the result set. Note that in order to gather profiling information, this actually executes the query as well. You can wrap a call to this in a transaction that you roll back if you don't want the query to have an actual effect on the data.

Parameters:

query - The query to profile

params - Parameters for the query

Returns:

A ExecutionResult that contains the result set

Throws:

org.neo4j.cypher.SyntaxException - If the Query contains errors, a SyntaxException exception might be thrown

org.neo4j.cypher.CypherException

prettify

public String prettify(String query)

Deprecated.

Turns a valid Cypher query and returns it with keywords in uppercase, and new-lines in the appropriate places.

Parameters:

query - The query to make pretty

Returns:

The same query, but prettier