MapLibre Native Android/org.maplibre.android.style.expressions/Expression/has

has

open fun has(@NonNull key: Expression): Expression(source)

Tests for the presence of an property value in the current feature's properties.

Example usage:


FillLayer fillLayer = new FillLayer("layer-id", "source-id");
fillLayer.setFilter(
    has(get("keyToValue"))
);

Return

expression

Parameters

key

the expression property value key

See also

Style specification

open fun has(@NonNull key: String): Expression(source)

Tests for the presence of an property value in the current feature's properties.

Example usage:


FillLayer fillLayer = new FillLayer("layer-id", "source-id");
fillLayer.setFilter(
    has("keyToValue")
);

Return

expression

Parameters

key

the property value key

See also

Style specification

open fun has(@NonNull key: Expression, @NonNull object: Expression): Expression(source)

Tests for the presence of an property value from another object.

Example usage:


FillLayer fillLayer = new FillLayer("layer-id", "source-id");
fillLayer.setFilter(
    has(get("keyToValue"), get("keyToObject"))
);

Return

expression

Parameters

key

the expression property value key

object

an expression object

See also

Style specification

open fun has(@NonNull key: String, @NonNull object: Expression): Expression(source)

Tests for the presence of an property value from another object.

Example usage:


FillLayer fillLayer = new FillLayer("layer-id", "source-id");
fillLayer.setFilter(
    has("keyToValue", get("keyToObject"))
);

Return

expression

Parameters

key

the property value key

object

an expression object

See also

Style specification