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A packaging of the IntelliJ Community Edition properties-psi-api library. This is release number 1 of trunk branch 142.

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/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * 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 com.intellij.lang.properties;

import com.intellij.lang.properties.psi.PropertiesFile;
import com.intellij.openapi.util.Iconable;
import com.intellij.pom.Navigatable;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiInvalidElementAccessException;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * @author Dmitry Avdeev
 *         Date: 7/25/11
 */
public interface IProperty extends Navigatable, Iconable {

  String getName();

  PsiElement setName(String name);

  @Nullable
  String getKey();

  @Nullable
  String getValue();

  /**
   * Returns the value with \n, \r, \t, \f and Unicode escape characters converted to their
   * character equivalents.
   *
   * @return unescaped value, or null if no value is specified for this property.
   */
  @Nullable
  String getUnescapedValue();

  /**
   * Returns the key with \n, \r, \t, \f and Unicode escape characters converted to their
   * character equivalents.
   *
   * @return unescaped key, or null if no key is specified for this property.
   */
  @Nullable
  String getUnescapedKey();

  void setValue(@NonNls @NotNull String value) throws IncorrectOperationException;

  PropertiesFile getPropertiesFile() throws PsiInvalidElementAccessException;

  /**
   * @return text of comment preceding this property. Comment-start characters ('#' and '!') are stripped from the text.
   */
  @Nullable
  String getDocCommentText();

  @NotNull
  PsiElement getPsiElement();
}