DefaultClauseBuilder.java
/*
* #%L
* prolobjectlink-jpi
* %%
* Copyright (C) 2019 Prolobjectlink Project
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* #L%
*/
package io.github.prolobjectlink.prolog;
/**
*
* @author Jose Zalacain
* @since 1.0
*/
final class DefaultClauseBuilder extends AbstractBuilder implements PrologClauseBuilder {
DefaultClauseBuilder(PrologEngine engine) {
super(engine);
}
public PrologClauseBuilder begin(PrologTerm term) {
append(' ');
append(term);
return this;
}
public PrologClauseBuilder begin(String functor, PrologTerm... arguments) {
append(functor, arguments);
return this;
}
public PrologClauseBuilder neck(PrologTerm body) {
append(':');
append('-');
append(' ');
append(body);
return this;
}
public PrologClauseBuilder neck(String functor, PrologTerm... arguments) {
append(':');
append('-');
append(' ');
append(functor, arguments);
return this;
}
public PrologClauseBuilder neck(PrologTerm left, String operator, int right) {
append(':');
append('-');
append(' ');
append(left, operator, right);
return this;
}
public PrologClauseBuilder neck(PrologTerm left, String operator, PrologTerm right) {
append(':');
append('-');
append(' ');
append(left, operator, right);
return this;
}
public PrologClauseBuilder comma(PrologTerm body) {
append(',');
append(' ');
append(body);
return this;
}
public PrologClauseBuilder comma(String functor, PrologTerm... arguments) {
append(',');
append(' ');
append(functor, arguments);
return this;
}
public PrologClauseBuilder comma(PrologTerm left, String operator, PrologTerm right) {
append(',');
append(' ');
append(left, operator, right);
return this;
}
public String getClauseString() {
return "" + builder + "";
}
public boolean clause() {
String c = getClauseString();
builder = new StringBuilder();
return engine.clause(c);
}
public void asserta() {
String c = getClauseString();
builder = new StringBuilder();
engine.asserta(c);
}
public void assertz() {
String c = getClauseString();
builder = new StringBuilder();
engine.assertz(c);
}
public void retract() {
String c = getClauseString();
builder = new StringBuilder();
engine.retract(c);
}
}