Use of FilterCapabilities

Capabilities capabilities = new Capabilities( filterCapabilities );
capabilities.addType( Beyond.class ); // add to SpatialCapabilities
capabilities.addType( PropertyIsEqualTo.class ); // add to ScalarCapabilities
capabilities.addName( "NullCheck" ); // will enable PropertyIsNull use
capabilities.addName( "MUL" ); // will enable hasSimpleArithmatic
capabilities.addName( "random" ); // a function returning a random number
capabilities.addName( "Length", 1 ); // single argument function
capabilities.addName( "toDegrees", "radians" ); // single argument function
capabilities.addName( "length", "expression" );

if( capabilities.fullySupports( filter ) ){
    // encode as SQL
}

Capabilities capabilities2 = new Capabilities();

capabilities2.addAll( capabilities );
capabilities2.addAll( Capabilities.LOGICAL ); // Capabilities.LOGICAL is a FilterCapabilities