Struct PropertyMapBuilder 

pub struct PropertyMapBuilder { /* private fields */ }

Builder for creating graph element property maps

PropertyMapBuilder provides a fluent API for constructing ElementPropertyMap instances used when inserting or updating nodes and relationships in the graph.

Supported Property Types

• String: Text values
• Integer: 64-bit signed integers
• Float: 64-bit floating point numbers
• Boolean: true/false values
• Null: Explicit null values

Thread Safety

PropertyMapBuilder is not thread-safe. Create a new builder for each thread.

Examples

Basic Usage

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_string("name", "Alice")
    .with_integer("age", 30)
    .with_bool("active", true)
    .with_float("score", 95.5)
    .build();

With Application Source

use drasi_source_application::{ApplicationSource, ApplicationSourceConfig, PropertyMapBuilder};
use std::collections::HashMap;

let config = ApplicationSourceConfig { properties: HashMap::new() };
let (source, handle) = ApplicationSource::new("events", config)?;

// Create a user node with multiple properties
let properties = PropertyMapBuilder::new()
    .with_string("username", "alice")
    .with_string("email", "alice@example.com")
    .with_integer("age", 30)
    .with_bool("verified", true)
    .with_float("rating", 4.8)
    .build();

handle.send_node_insert("user-1", vec!["User"], properties).await?;

Null Values

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_string("name", "Bob")
    .with_null("middle_name")  // Explicit null
    .build();

Implementations

impl PropertyMapBuilder

pub fn new() -> Self

Create a new empty property map builder

Examples

use drasi_source_application::PropertyMapBuilder;

let builder = PropertyMapBuilder::new();
let properties = builder.build();

pub fn with_string(self, key: impl AsRef<str>, value: impl Into<String>) -> Self

Add a string property

Arguments

• key - Property name
• value - String value (converted to Arc<str> internally)

Examples

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_string("name", "Alice")
    .with_string("email", "alice@example.com")
    .build();

pub fn with_integer(self, key: impl AsRef<str>, value: i64) -> Self

Add an integer property (64-bit signed)

Arguments

• key - Property name
• value - Integer value (i64)

Examples

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_integer("age", 30)
    .with_integer("count", 1000)
    .build();

pub fn with_float(self, key: impl AsRef<str>, value: f64) -> Self

Add a floating-point property (64-bit)

Arguments

• key - Property name
• value - Float value (f64)

Examples

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_float("rating", 4.5)
    .with_float("price", 29.99)
    .build();

pub fn with_bool(self, key: impl AsRef<str>, value: bool) -> Self

Add a boolean property

Arguments

• key - Property name
• value - Boolean value

Examples

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_bool("active", true)
    .with_bool("verified", false)
    .build();

pub fn with_null(self, key: impl AsRef<str>) -> Self

Add an explicit null property

Use this to explicitly set a property to null, which is different from not having the property at all.

Arguments

• key - Property name

Examples

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_string("first_name", "Alice")
    .with_null("middle_name")  // Explicitly null
    .with_string("last_name", "Smith")
    .build();

pub fn build(self) -> ElementPropertyMap

Build the final property map

Consumes the builder and returns the constructed ElementPropertyMap.

Examples

use drasi_source_application::PropertyMapBuilder;

let properties = PropertyMapBuilder::new()
    .with_string("name", "Alice")
    .with_integer("age", 30)
    .build();

// properties can now be used with send_node_insert, send_node_update, etc.

Trait Implementations

impl Default for PropertyMapBuilder

fn default() -> Self

Returns the “default value” for a type.