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/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.camunda.bpm.engine.impl;

import java.io.Serializable;
import java.util.List;

import org.camunda.bpm.engine.impl.variable.serializer.VariableSerializers;
import org.camunda.bpm.engine.variable.Variables;
import org.camunda.bpm.engine.variable.value.TypedValue;


/**
 * Represents a variable value used in queries.
 *
 * @author Frederik Heremans
 */
public class QueryVariableValue implements Serializable {
  protected static final long serialVersionUID = 1L;
  protected String name;
  protected TypedValue value;
  protected QueryOperator operator;
  protected boolean local;

  protected AbstractQueryVariableValueCondition valueCondition;

  public QueryVariableValue(String name, Object value, QueryOperator operator, boolean local) {
    this.name = name;
    this.value = Variables.untypedValue(value);
    this.operator = operator;
    this.local = local;
  }

  public void initialize(VariableSerializers serializers) {
    if (value.getType() != null && value.getType().isAbstract()) {
      valueCondition = new CompositeQueryVariableValueCondition(this);
    } else {
      valueCondition = new SingleQueryVariableValueCondition(this);
    }

    valueCondition.initializeValue(serializers);
  }

  public List getValueConditions() {
    return valueCondition.getDisjunctiveConditions();
  }

  public String getName() {
    return name;
  }

  public QueryOperator getOperator() {
    if(operator != null) {
      return operator;
    }
    return QueryOperator.EQUALS;
  }

  public String getOperatorName() {
    return getOperator().toString();
  }

  public Object getValue() {
    return value.getValue();
  }

  public TypedValue getTypedValue() {
    return value;
  }

  public boolean isLocal() {
    return local;
  }
}