io.ebeaninternal.server.grammer.EqlWhereAdapter 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.grammer;

import io.ebean.ExpressionFactory;
import io.ebean.ExpressionList;
import io.ebeaninternal.server.util.ArrayStack;

class EqlWhereAdapter extends EqlWhereListener {

  private final ExpressionList where;
  private final ExpressionFactory expr;
  private final Object[] params;

  private int paramIndex;

  EqlWhereAdapter(ExpressionList where, ExpressionFactory expr, Object[] params) {
    this.where = where;
    this.expr = expr;
    this.params = params;
  }

  @Override
  ExpressionList peekExprList() {
    if (whereStack == null) {
      whereStack = new ArrayStack<>();
      whereStack.push(where);
    }
    return whereStack.peek();
  }

  @Override
  ExpressionFactory expressionFactory() {
    return expr;
  }

  @Override
  Object positionParam(String paramPosition) {
    if ("?".equals(paramPosition)) {
      return params[paramIndex++];
    }
    final int pos = Integer.parseInt(paramPosition.substring(1));
    return params[pos -1];
  }

  @Override
  Object namedParam(String substring) {
    throw new RuntimeException("Not supported");
  }
}