public BooleanExpression containsIgnoreCase(String str) {
        return containsIgnoreCase(ConstantImpl.create(str));
    }
Create a {@code this.containsIgnoreCase(str)} expression

<p>Returns true if the given String is contained, compare case insensitively</p>

@param str string
@return this.containsIgnoreCase(str)
querydsl-core/src/main/java/com/querydsl/core/types/dsl/StringExpression.java