Java Predicate类代码示例

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public GraphQuery has(String key, Predicate predicate, Object value) {
    if (predicate.toString().equals("EQUAL"))
        return has(key, value);
    else if (predicate.toString().equals("NOT_EQUAL"))
        return hasNot(key, value);
    else if (predicate.toString().equals("GREATER_THAN"))
        queryBuilder = queryBuilder.greaterThan(key, value);
    else if (predicate.toString().equals("LESS_THAN"))
        queryBuilder = queryBuilder.lessThan(key, value);
    else if (predicate.toString().equals("GREATER_THAN_EQUAL"))
        queryBuilder = queryBuilder.greaterThanEq(key, value);
    else if (predicate.toString().equals("LESS_THAN_EQUAL"))
        queryBuilder = queryBuilder.lessThanEq(key, value);
    else if (predicate.toString().equals("IN"))
        queryBuilder = queryBuilder.in(key, (Collection<Object>)value);
    else if(predicate.toString().equals("NOT_IN"))
        queryBuilder = queryBuilder.notIn(key, (Collection<Object>)value);
    else
        throw new UnsupportedOperationException("Predicate with type " + predicate + " is not supported.");

    return this;
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public VertexQuery has(String key, Predicate predicate, Object value) {
    if (predicate.toString().equals("EQUAL"))
        return has(key, value);
    else if (predicate.toString().equals("NOT_EQUAL"))
        return hasNot(key, value);
    else if (predicate.toString().equals("GREATER_THAN"))
        queryBuilder = queryBuilder.greaterThan(key, value);
    else if (predicate.toString().equals("LESS_THAN"))
        queryBuilder = queryBuilder.lessThan(key, value);
    else if (predicate.toString().equals("GREATER_THAN_EQUAL"))
        queryBuilder = queryBuilder.greaterThanEq(key, value);
    else if (predicate.toString().equals("LESS_THAN_EQUAL"))
        queryBuilder = queryBuilder.lessThanEq(key, value);
    else if (predicate.toString().equals("IN"))
        queryBuilder = queryBuilder.in(key, (Collection<Object>)value);
    else if (predicate.toString().equals("NOT_IN"))
        queryBuilder = queryBuilder.notIn(key, (Collection<Object>)value);
    else
        throw new UnsupportedOperationException("Predicate with type " + predicate + " is not supported.");

    return this;
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
public static Predicate mapPredicate(final T t) {
    if (t.equals(T.eq))
        return Compare.EQUAL;
    else if (t.equals(T.neq))
        return Compare.NOT_EQUAL;
    else if (t.equals(T.lt))
        return Compare.LESS_THAN;
    else if (t.equals(T.lte))
        return Compare.LESS_THAN_EQUAL;
    else if (t.equals(T.gt))
        return Compare.GREATER_THAN;
    else if (t.equals(T.gte))
        return Compare.GREATER_THAN_EQUAL;
    else if (t.equals(T.in))
        return Contains.IN;
    else if (t.equals(T.notin))
        return Contains.NOT_IN;
    else
        throw new IllegalArgumentException(t.toString() + " is an unknown filter type");
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
protected org.vertexium.query.Predicate toVertexiumPredicate(Predicate predicate) {
    if (predicate.equals(com.tinkerpop.blueprints.Compare.EQUAL)) {
        return org.vertexium.query.Compare.EQUAL;
    }
    if (predicate.equals(com.tinkerpop.blueprints.Compare.NOT_EQUAL)) {
        return org.vertexium.query.Compare.NOT_EQUAL;
    }
    if (predicate.equals(com.tinkerpop.blueprints.Compare.GREATER_THAN)) {
        return org.vertexium.query.Compare.GREATER_THAN;
    }
    if (predicate.equals(com.tinkerpop.blueprints.Compare.GREATER_THAN_EQUAL)) {
        return org.vertexium.query.Compare.GREATER_THAN_EQUAL;
    }
    if (predicate.equals(com.tinkerpop.blueprints.Compare.LESS_THAN)) {
        return org.vertexium.query.Compare.LESS_THAN;
    }
    if (predicate.equals(com.tinkerpop.blueprints.Compare.LESS_THAN_EQUAL)) {
        return org.vertexium.query.Compare.LESS_THAN_EQUAL;
    }

    if (predicate.equals(com.tinkerpop.blueprints.Contains.IN)) {
        return org.vertexium.query.Contains.IN;
    }
    if (predicate.equals(com.tinkerpop.blueprints.Contains.NOT_IN)) {
        return org.vertexium.query.Contains.NOT_IN;
    }

    throw new VertexiumException("Could not convert Blueprints predicate '" + predicate + "' to Vertexium predicate");
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public GraphQuery has(String key, Predicate predicate, Object value) {
    org.vertexium.query.Predicate vertexiumPredicate = toVertexiumPredicate(predicate);
    this.q.has(key, vertexiumPredicate, value);
    hasFilter = true;
    return this;
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
public Traversal has(String key, Predicate predicate, Object value) {
	if(value instanceof Enum) {
		value = value.toString();
	}
	pipeline().has(key, predicate, value);
	return this;
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
public void has(String key, Predicate predicate, Object value) {
    if (predicate == null) {
        throw new NullPointerException("null predicate");
    }

    if (isPredicateSupported(predicate)) {
        addFilter(filters, key, new OperatorAndValue(predicate, value));
    } else {
        throw new IllegalArgumentException("predicate not supported: " + predicate);
    }
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
/**
 * Add an IdFilterPipe, LabelFilterPipe, or PropertyFilterPipe to the end of the Pipeline.
 * If the incoming element has the provided key/value as check with .equals(), then let the element pass.
 * If the key is id or label, then use respect id or label filtering.
 *
 * @param key       the property key to check
 * @param predicate the comparison to use
 * @param value     the object to filter on
 * @return the extended Pipeline
 */
public GremlinPipeline<S, ? extends Element> has(final String key, final Predicate predicate, final Object value) {
    if (key.equals(Tokens.ID)) {
        return this.add(new IdFilterPipe(predicate, value));
    } else if (key.equals(Tokens.LABEL)) {
        return this.add(new LabelFilterPipe(predicate, value));
    } else {
        final Pipe pipe = new PropertyFilterPipe(key, predicate, value);
        return this.doQueryOptimization ? GremlinFluentUtility.optimizePipelineForQuery(this, pipe) : this.add(pipe);
    }
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
public ArangoDBQuery has(String key, Predicate prdct, Object value) {
	if (prdct instanceof com.tinkerpop.blueprints.Compare) {
		com.tinkerpop.blueprints.Compare compare = (com.tinkerpop.blueprints.Compare) prdct;
		hasCompare(key, value, compare);
	} else if (prdct instanceof com.tinkerpop.blueprints.Contains) {
		com.tinkerpop.blueprints.Contains contains = (com.tinkerpop.blueprints.Contains) prdct;
		hasContains(key, contains, value);
	}
	return this;
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public QueryBuilder has(String key, Predicate predicate, Object value) {
    super.has(key, predicate, value);
    return this;
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public Q has(String key, Predicate predicate, Object value) {
    return addConstraint(key, TitanPredicate.Converter.convert(predicate), value);
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public Q has(PropertyKey key, Predicate predicate, Object value);
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public EdgeTraversal has(String key, Predicate predicate, Object value) {
	return (EdgeTraversal) super.has(key, predicate, value);
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
@Override
public VertexTraversal has(String key, Predicate predicate, Object value) {
	return (VertexTraversal) super.has(key, predicate, value);
}
 

import com.tinkerpop.blueprints.Predicate; //导入依赖的package包/类
public VertexTraversal has(String key, Predicate predicate, Object value) {
	return delegate().has(key, predicate, value);
}