io.ebeaninternal.server.deploy.DeployPropertyParser Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ebean Show documentation

composite of common runtime dependencies for all platforms

There is a newer version: 15.10.0

package io.ebeaninternal.server.deploy;

import io.ebeaninternal.server.el.ElPropertyDeploy;

import java.util.HashSet;
import java.util.Set;

/**
 * Converts logical property names to database columns with table alias.
 * 
 * In doing so it builds an 'includes' set which becomes the joins required to
 * support the properties parsed.
 * 
 */
public final class DeployPropertyParser extends DeployParser {

  private static final String JOIN = "join";

  private static final String FROM = "from";

  private final BeanDescriptor beanDescriptor;

  private final Set includes = new HashSet<>();

  private boolean catchFirst;

  private ElPropertyDeploy firstProp;

  DeployPropertyParser(BeanDescriptor beanDescriptor) {
    this.beanDescriptor = beanDescriptor;
  }

  /**
   * Set to true to catch the first property.
   */
  public DeployPropertyParser setCatchFirst(boolean catchFirst) {
    this.catchFirst = catchFirst;
    return this;
  }

  /**
   * Return the first property found by the parser.
   */
  public ElPropertyDeploy getFirstProp() {
    return firstProp;
  }

  @Override
  public Set getIncludes() {
    return includes;
  }

  /**
   * Skip if in raw sql expression with from tableName or join tableName.
   */
  @Override
  protected boolean skipWordConvert() {
    return FROM.equalsIgnoreCase(priorWord) || JOIN.equalsIgnoreCase(priorWord);
  }

  @Override
  public String getDeployWord(String expression) {
    ElPropertyDeploy elProp = beanDescriptor.getElPropertyDeploy(expression);
    if (elProp == null) {
      return null;
    } else {
      if (catchFirst && firstProp == null) {
        firstProp = elProp;
      }
      addIncludes(elProp.getElPrefix());
      return elProp.getElPlaceholder(encrypted);
    }
  }

  @Override
  public String convertWord() {
    String r = getDeployWord(word);
    return r == null ? word : r;
  }

  private void addIncludes(String prefix) {
    if (prefix != null) {
      includes.add(prefix);
    }
  }
}