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178 lines (153 loc) · 4.19 KB
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package jaskell.sql;
import jaskell.parsec.Eq;
import jaskell.script.Directive;
import jaskell.script.Parameter;
import org.w3c.dom.ranges.DocumentRange;
import java.util.List;
import java.util.stream.Collectors;
public abstract class Predicate implements Directive {
public Predicate and(Predicate predicate){
And re = new And();
re._left = this;
re._right = predicate;
return re;
}
public Predicate or(Predicate predicate){
Or re = new Or();
re._left = this;
re._right = predicate;
return re;
}
public Predicate eq(Directive predicate){
Equal re = new Equal();
re._left = this;
re._right = predicate;
return re;
}
public Predicate ne(Directive predicate){
NotEqual re = new NotEqual();
re._left = this;
re._right = predicate;
return re;
}
public Predicate gt(Directive predicate){
Great re = new Great();
re._left = this;
re._right = predicate;
return re;
}
public Predicate ls(Directive predicate){
Less re = new Less();
re._left = this;
re._right = predicate;
return re;
}
public Predicate gte(Directive predicate){
GreateOrEqual re = new GreateOrEqual();
re._left = this;
re._right = predicate;
return re;
}
public Predicate lte(Directive predicate){
LessOrEqual re = new LessOrEqual();
re._left = this;
re._right = predicate;
return re;
}
public Predicate in(List<Directive> data) {
Predicate _prefix = this;
return new Predicate() {
@Override
public String script() {
return String.format("%s in (%s)",
_prefix.script(), data.stream().map(Directive::script).collect(Collectors.joining(", ")));
}
@Override
public List<Parameter<?>> parameters() {
return data.stream().flatMap(d -> d.parameters().stream()).collect(Collectors.toList());
}
};
}
public Predicate like(Directive predicate){
Like re = new Like();
re._left = this;
re._right = predicate;
return re;
}
public <T> Predicate or(T value){
Or re = new Or();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate eq(T value){
Equal re = new Equal();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate ne(T value){
NotEqual re = new NotEqual();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate gt(T value){
Great re = new Great();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate lt(T value){
Less re = new Less();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate gte(T value){
GreateOrEqual re = new GreateOrEqual();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate lte(T value){
LessOrEqual re = new LessOrEqual();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate like(T value){
Like re = new Like();
re._left = this;
re._right = pure(value);
return re;
}
public <T> Predicate op(String operator, T value){
Binary op = new Binary() {
@Override
protected String operator() {
return operator;
}
};
op._left = this;
op._right = pure(value);
return op;
}
public Predicate isNull(){
IsNull re = new IsNull();
re._prefix = this;
return re;
}
public Predicate isNotNull(){
IsNotNull re = new IsNotNull();
re._prefix = this;
return re;
}
private <T> Directive pure(T value){
if(value instanceof Directive){
return (Directive) value;
}else {
return new Literal(value);
}
}
}