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tasks/astrid/common-src/com/todoroo/andlib/sql/Field.java

91 lines
2.8 KiB
Java

package com.todoroo.andlib.sql;
import static com.todoroo.andlib.sql.Constants.AND;
import static com.todoroo.andlib.sql.Constants.BETWEEN;
import static com.todoroo.andlib.sql.Constants.COMMA;
import static com.todoroo.andlib.sql.Constants.LEFT_PARENTHESIS;
import static com.todoroo.andlib.sql.Constants.RIGHT_PARENTHESIS;
import static com.todoroo.andlib.sql.Constants.SPACE;
public class Field extends DBObject<Field> {
protected Field(String expression) {
super(expression);
}
public static Field field(String expression) {
return new Field(expression);
}
public Criterion eq(Object value) {
if(value == null)
return UnaryCriterion.isNull(this);
return UnaryCriterion.eq(this, value);
}
public Criterion neq(Object value) {
if(value == null)
return UnaryCriterion.isNotNull(this);
return UnaryCriterion.neq(this, value);
}
public Criterion gt(Object value) {
return UnaryCriterion.gt(this, value);
}
public Criterion lt(final Object value) {
return UnaryCriterion.lt(this, value);
}
public Criterion isNull() {
return UnaryCriterion.isNull(this);
}
public Criterion isNotNull() {
return UnaryCriterion.isNotNull(this);
}
public Criterion between(final Object lower, final Object upper) {
final Field field = this;
return new Criterion(null) {
@Override
protected void populate(StringBuilder sb) {
sb.append(field).append(SPACE).append(BETWEEN).append(SPACE).append(lower).append(SPACE).append(AND)
.append(SPACE).append(upper);
}
};
}
public Criterion like(final String value) {
return UnaryCriterion.like(this, value);
}
public <T> Criterion in(final T... value) {
final Field field = this;
return new Criterion(Operator.in) {
@Override
protected void populate(StringBuilder sb) {
sb.append(field).append(SPACE).append(Operator.in).append(SPACE).append(LEFT_PARENTHESIS);
for (T t : value) {
sb.append(t.toString()).append(COMMA);
}
sb.deleteCharAt(sb.length() - 1).append(RIGHT_PARENTHESIS);
}
};
}
public Criterion in(final Query query) {
final Field field = this;
return new Criterion(Operator.in) {
@Override
protected void populate(StringBuilder sb) {
sb.append(field).append(SPACE).append(Operator.in).append(SPACE).append(LEFT_PARENTHESIS).append(query)
.append(RIGHT_PARENTHESIS);
}
};
}
}