Examples with Statement org.neo4j.ogm.request.Statement used on opensource projects

Example 1 with Statement

use of org.neo4j.ogm.request.Statement in project neo4j-ogm by neo4j.

the class BoltRequest method execute.

@Override
public Response<RowModel> execute(DefaultRequest query) {
    final List<RowModel> rowModels = new ArrayList<>();
    String[] columns = null;
    for (Statement statement : query.getStatements()) {
        Result result = executeRequest(statement);
        if (columns == null) {
            try {
                List<String> columnSet = result.keys();
                columns = columnSet.toArray(new String[columnSet.size()]);
            } catch (ClientException e) {
                throw new CypherException(e.code(), e.getMessage(), e);
            }
        }
        try (RowModelResponse rowModelResponse = new RowModelResponse(result, entityAdapter)) {
            RowModel model;
            while ((model = rowModelResponse.next()) != null) {
                rowModels.add(model);
            }
            result.consume();
        } catch (ClientException e) {
            throw new CypherException(e.code(), e.getMessage(), e);
        }
    }
    return new MultiStatementBasedResponse(columns, rowModels);
}

Example 2 with Statement

use of org.neo4j.ogm.request.Statement in project neo4j-ogm by neo4j.

the class MultiStatementCypherCompiler method deleteRelationshipEntityStatements.

@Override
public List<Statement> deleteRelationshipEntityStatements() {
    assertStatementFactoryExists();
    // Group relationships by type
    Map<String, Set<Edge>> deletedRelsByType = groupRelationshipsByType(deletedRelationshipEntityBuilders);
    List<Statement> statements = new ArrayList<>();
    for (Set<Edge> edges : deletedRelsByType.values()) {
        DeletedRelationshipEntityStatementBuilder deletedRelationshipBuilder = new DeletedRelationshipEntityStatementBuilder(edges, statementFactory);
        statements.add(deletedRelationshipBuilder.build());
    }
    return statements;
}

Example 3 with Statement

use of org.neo4j.ogm.request.Statement in project neo4j-ogm by neo4j.

the class MultiStatementCypherCompiler method updateRelationshipStatements.

@Override
public List<Statement> updateRelationshipStatements() {
    assertStatementFactoryExists();
    if (existingRelationshipBuilders.isEmpty()) {
        return Collections.emptyList();
    }
    Map<Boolean, Set<Edge>> collect = existingRelationshipBuilders.values().stream().collect(partitioningBy(RelationshipBuilder::isDirty, Collectors.mapping(RelationshipBuilder::edge, Collectors.toSet())));
    List<Statement> result = new ArrayList<>();
    if (!collect.get(true).isEmpty()) {
        ExistingRelationshipStatementBuilder builder = new ExistingRelationshipStatementBuilder(collect.get(true), statementFactory, true);
        result.add(builder.build());
    }
    if (!collect.get(false).isEmpty()) {
        ExistingRelationshipStatementBuilder builder = new ExistingRelationshipStatementBuilder(collect.get(false), statementFactory, false);
        result.add(builder.build());
    }
    return result;
}

Example 4 with Statement

use of org.neo4j.ogm.request.Statement in project neo4j-ogm by neo4j.

the class MultiStatementCypherCompiler method updateNodesStatements.

@Override
public List<Statement> updateNodesStatements() {
    assertStatementFactoryExists();
    Map<String, Set<Node>> existingNodesByLabels = groupNodesByLabel(existingNodeBuilders.values());
    List<Statement> statements = new ArrayList<>(existingNodesByLabels.size());
    for (Set<Node> nodeModels : existingNodesByLabels.values()) {
        ExistingNodeStatementBuilder existingNodeBuilder = new ExistingNodeStatementBuilder(nodeModels, statementFactory);
        statements.add(existingNodeBuilder.build());
    }
    return statements;
}

Example 5 with Statement

use of org.neo4j.ogm.request.Statement in project neo4j-ogm by neo4j.

the class AutoIndexManager method assertIndexes.

private void assertIndexes() {
    LOGGER.debug("Asserting indexes and constraints");
    List<Statement> dropStatements = new ArrayList<>();
    List<AutoIndex> dbIndexes = loadIndexesFromDB();
    for (AutoIndex dbIndex : dbIndexes) {
        LOGGER.debug("[{}] added to drop statements.", dbIndex.getDescription());
        dropStatements.add(dbIndex.getDropStatement());
    }
    DefaultRequest dropIndexesRequest = new DefaultRequest();
    dropIndexesRequest.setStatements(dropStatements);
    LOGGER.debug("Dropping all indexes and constraints");
    // make sure drop and create happen in separate transactions
    // neo does not support that
    session.doInTransaction(() -> {
        session.requestHandler().execute(dropIndexesRequest);
    }, READ_WRITE);
    create();
}